Fire-Boltt Hunter 51.1mm Review 2026: Budget Smartwatch with Big Display

The Fire-Boltt Hunter 51.1mm is a budget smartwatch that brings a large 2.01-inch display and Bluetooth calling to the affordable segment. Priced at ₹1,399 on Flipkart, this smartwatch offers features that usually cost much more.

The Hunter stands out because of its big square screen and the ability to make phone calls from your wrist. It includes health tracking features like heart rate monitoring, blood oxygen measurement, and sleep tracking. The watch also has 120+ sports modes and IP67 water resistance.

This Fire-Boltt Hunter 51.1mm Review will help you understand if this smartwatch is right for you. We’ll look at every feature, explain what works well, and point out the limitations. Use our Gadget Finder to compare this watch with other options in your budget.

Launch Date: May 2023
Current Price: ₹1,399 (Flipkart)
Best For: Budget buyers who want a big screen and Bluetooth calling
Key Feature: Largest display in budget smartwatches (2.01 inches)
Overall Rating: 7.2/10 – Good Value for Money

Quick Summary: The Fire-Boltt Hunter offers a huge 2.01-inch screen at a very affordable price. It has Bluetooth calling, basic health tracking, and over 120 sports modes. The battery lasts about 5 days with normal use. However, the TFT display is not as bright or colorful as AMOLED screens, and the battery drains faster when you use Bluetooth calling frequently.

Design & Build Quality

The Fire-Boltt Hunter has a square 51.1mm case that’s 9.8mm thick. The case is made of plastic (ABS + PC) with zinc alloy accents that give it a metallic look. The watch weighs just 36.8 grams, which makes it light and comfortable to wear all day.

The watch comes with a removable silicone strap. You can replace it with other straps if you want to change the look. The watch is available in seven colors: Black, Dark Blue, Light Grey, White, Blue, Silver, and Mist Grey.

The watch has IP67 water resistance. This means it can handle water up to 1 meter deep for 30 minutes. You can wear it while washing hands, in the rain, or during workouts. You can even wear it while swimming, but it’s better to avoid deep water or diving.

The front has a single physical button on the side. You use this button along with the touchscreen to control the watch. The 3D curved glass on the front has scratch resistance, though it’s not as strong as Gorilla Glass found on expensive watches.

Display Quality

The Fire-Boltt Hunter 51.1mm Review shows this watch has one of the biggest displays in budget smartwatches. The 2.01-inch TFT LCD screen has 240×296 pixel resolution. This gives you 80% screen-to-body ratio, which means more screen and less bezel.

The display brightness is 450 nits. This is bright enough to see the screen outdoors in sunlight, though it’s not as bright as premium watches. The TFT LCD technology uses less power than AMOLED displays, which helps the battery last longer.

The screen uses single-touch technology. This means you can tap and swipe, but you can’t use multi-touch gestures like pinch-to-zoom. The watch doesn’t have an always-on display feature. You need to raise your wrist or press the button to see the time.

The TFT LCD screen is the main trade-off in this watch. It saves battery life but doesn’t show colors as vividly as AMOLED displays. The blacks aren’t as deep, and the contrast is lower. But for the price, the large screen size makes up for this limitation.

Heart Rate Monitoring

The Fire-Boltt Hunter uses an HRS3600 optical sensor to track your heart rate. This sensor watches your heart rate all day and night. It checks your heart rate every few minutes when you’re not exercising.

During workouts, the sensor tracks your heart rate continuously. This helps you stay in the right heart rate zone for your fitness goals. The Fire-Boltt Health app shows your heart rate data in graphs and charts.

The heart rate sensor works reasonably well for basic fitness tracking. However, it’s not as accurate as medical devices or premium fitness watches. The readings can vary if the watch is loose on your wrist or during high-intensity exercises.

Blood Oxygen (SpO2) Monitoring

The watch can measure your blood oxygen levels using the same optical sensor. You can take a quick reading anytime by opening the SpO2 feature on the watch. This gives you a result in about 15-20 seconds.

The watch also has continuous SpO2 monitoring. This tracks your oxygen levels throughout the day and during sleep. This feature is useful for understanding your overall health and how well you breathe during sleep.

Blood oxygen monitoring became important during the COVID-19 pandemic. While smartwatch sensors aren’t medical-grade, they can give you a general idea of your SpO2 levels.

Sleep Tracking

The Fire-Boltt Hunter tracks your sleep automatically. You don’t need to tell it when you’re going to bed. It detects when you fall asleep and when you wake up.

The watch divides your sleep into three stages: light sleep, deep sleep, and REM (dream) sleep. The app shows how much time you spent in each stage. It also gives you a sleep quality score.

The app provides suggestions to improve your sleep based on your patterns. However, the advice is basic compared to dedicated sleep tracking devices.

Other Health Features

The watch has stress monitoring that uses your heart rate patterns to estimate stress levels. When stress is detected, the watch can guide you through breathing exercises.

There’s a breathing monitor app that guides you through relaxation exercises. This can help calm your mind after a stressful day.

The watch includes a menstrual cycle tracker for women. You can log your periods and get predictions for your next cycle. The watch sends reminders based on your logged data.

Sedentary reminders nudge you to move if you’ve been sitting too long. This encourages healthier habits throughout the day.

120+ Sports Modes

The Fire-Boltt Hunter 51.1mm Review highlights the impressive number of sports modes. The watch supports 120+ different activities. This includes:

• Running (outdoor and indoor)
• Walking
• Cycling (outdoor and indoor)
• Swimming
• Hiking
• Climbing
• Yoga
• Strength training
• And many more specialized sports

Each sports mode tracks metrics specific to that activity. For running, it tracks pace, distance, and calories. For swimming, it counts laps. For cycling, it monitors speed and distance.

The watch starts tracking automatically when it detects you’re exercising. You can also manually start a workout from the sports modes menu.

Built-in GPS

The watch has built-in GPS for tracking outdoor activities. This means you don’t need to carry your phone while running or cycling. The GPS tracks your route, distance, and pace.

The GPS takes about 30-60 seconds to lock onto satellites when you’re outdoors. It works with GPS and GLONASS satellite systems for better accuracy. However, the accuracy is basic compared to expensive fitness watches.

GPS tracking uses more battery power. If you use GPS frequently, the battery will drain faster than normal use.

Workout Data & Analysis

After each workout, the watch syncs your data to the Fire-Boltt Health app. The app shows detailed workout history with charts and graphs. You can see your progress over time.

The app doesn’t provide advanced metrics like VO2 max or training load analysis. These features are found in higher-priced fitness watches. The Hunter focuses on basic but useful workout tracking.

Bluetooth Calling

One of the best features in this Fire-Boltt Hunter 51.1mm Review is Bluetooth calling. The watch has a built-in speaker and microphone. This lets you make and receive phone calls directly from your wrist.

The watch connects to your phone via Bluetooth 5.0. Once connected, you can access your phone’s contact list on the watch. You can dial numbers directly from the watch screen.

When someone calls your phone, the watch vibrates and shows the caller’s name. You can answer the call on the watch or reject it. The call quality is clear enough for basic conversations, though it’s not as good as your phone.

The single-chipset design means setting up Bluetooth calling is quick and easy. The connection is stable within about 10 meters of your phone.

However, using Bluetooth calling frequently drains the battery much faster. If you make many calls from the watch, expect shorter battery life.

Notifications

The watch shows notifications from your phone. This includes:

• Phone calls
• Text messages
• WhatsApp, Facebook, Instagram, and other social media apps
• Email alerts

The watch vibrates when a notification arrives. You can read messages on the large 2.01-inch screen. The screen size makes reading notifications easier than smaller smartwatches.

You can reply to messages using predefined quick replies or voice dictation. The voice assistant (Google Assistant or Siri) helps you reply without typing.

Music Control

You can control music playing on your phone from the watch. The controls include:

• Play/pause
• Next/previous track
• Volume up/down

The watch doesn’t store music files. It only controls music playing on your connected phone. You need to keep your phone nearby to use this feature.

Other Smart Features

Find My Phone: If you misplace your phone, the watch can make it ring loudly so you can find it.

Remote Camera Control: You can trigger your phone’s camera from the watch. This is useful for group photos or selfies.

Voice Assistant: The watch works with Google Assistant and Siri. You can use voice commands to set reminders, check weather, or control smart home devices.

Weather Updates: The watch shows current weather and forecasts when connected to your phone.

Calculator: There’s a built-in calculator for quick calculations.

Games: The watch includes simple built-in games for entertainment.

The watch doesn’t have NFC, so it can’t be used for contactless payments. This is common in budget smartwatches.

Battery Capacity & Life

The Fire-Boltt Hunter has a battery capacity of about 280-300 mAh. According to official specifications, the battery lasts:

• 5-7 days with typical use (heart rate monitoring, notifications, sleep tracking, daily step counting)
• 2-3 days if you use Bluetooth calling frequently
• Up to 15 days in standby mode (minimal features active, watch only mode)

Typical use means wearing the watch all day with continuous heart rate monitoring, receiving notifications, tracking one workout per day, and checking the screen occasionally.

If you make phone calls from the watch often, the battery drains much faster. The speaker and microphone use significant power during calls.

Battery life also depends on other factors:

• Screen brightness (higher brightness drains battery faster)
• GPS usage (GPS tracking uses more power)
• Number of notifications
• Frequency of checking the screen

Charging

The watch uses magnetic pogo pin charging. You attach the included USB charging cable to the back of the watch. The magnets help align it correctly.

Charging time is about 2-3 hours for a full charge from 0% to 100%. You can charge it using:

• Your computer’s USB port
• A low-power phone charger (5V/1A recommended)
• A power bank

Important: Don’t use fast chargers. High-power chargers can damage the watch over time. Use a standard 5V charger or connect to a computer USB port.

Battery Saving Tips

To extend battery life:

• Lower screen brightness
• Turn off continuous heart rate monitoring
• Disable Bluetooth when not using calling features
• Turn off GPS when not tracking outdoor workouts
• Reduce notification frequency

The watch has a battery saver mode that disables non-essential features to extend battery life in emergencies.

Sensors

The Fire-Boltt Hunter includes these sensors:

HRS3600 Optical Heart Rate Sensor: Uses LED lights to measure your pulse through your skin. This sensor provides both heart rate and SpO2 monitoring.

3-Axis Accelerometer: Detects movement and counts steps. This sensor enables automatic workout detection and sleep tracking.

Barometer: Measures atmospheric pressure to track elevation changes during hiking or climbing.

Pedometer: Counts your daily steps and calculates distance walked.

The watch doesn’t have:

• ECG sensor (for medical-grade heart monitoring)
• Skin temperature sensor (for fever detection)
• Compass sensor (for precise direction)
• Gyroscope (some sources mention it, but it’s not confirmed)

Connectivity

Bluetooth 5.0: The main connection between the watch and your phone. Bluetooth 5.0 provides better range (up to 10 meters), faster data transfer, and lower power consumption than older Bluetooth versions.

Built-in GPS: For tracking outdoor activities without your phone. Works with GPS and GLONASS satellite systems.

No Wi-Fi: The watch doesn’t connect to Wi-Fi networks. It relies on your phone’s connection for internet features like weather updates.

No NFC: Can’t be used for contactless payments.

No Cellular/LTE: Can’t work independently without phone connection.

Compatibility

The watch works with:

• Android phones running version 5.0 or newer
• iPhones running iOS (version not specified, but recent iOS versions should work)

You need to install the Fire-Boltt Health app from the Google Play Store or Apple App Store.

Watch Faces

The Fire-Boltt Hunter 51.1mm Review shows the watch comes with 100+ watch face options. These are cloud-based, meaning you download them from the app to the watch.

Watch face styles include:

• Analog clock designs
• Digital displays
• Sports-focused layouts
• Artistic and colorful designs
• Minimal and simple faces

The 2.01-inch square screen provides good space for displaying information. Most watch faces show time along with additional details like:

• Step count
• Heart rate
• Battery level
• Date
• Weather

You can change watch faces through the Fire-Boltt Health app. The app lets you preview faces before downloading them to the watch.

The watch doesn’t have always-on display, so you need to raise your wrist or press the button to see the watch face.

Customization Options

You can customize quick access widgets that appear when you swipe on the screen. These shortcuts give you faster access to features like:

• Heart rate check
• Weather
• Sports modes
• Music controls

The watch has limited UI customization compared to Wear OS or Apple Watch. You can’t install third-party apps or create custom watch faces. You’re limited to what Fire-Boltt provides.

Strap Replacement

The silicone strap is removable and replaceable. Based on the 51.1mm case size, the strap width is likely 20mm or 22mm (standard sizes). You can buy third-party straps in different materials:

• Silicone (different colors)
• Leather
• Metal
• Fabric/Nylon

The strap removal doesn’t require tools. You can swap straps quickly for different occasions or styles.

Feature Ratings:

⭐ Design & Build: 7/10 – Lightweight and comfortable, but plastic build feels less premium
⭐ Display Quality: 6.5/10 – Large size is great, but TFT LCD lacks AMOLED vibrancy
⭐ Health Tracking: 7.5/10 – Good basic health monitoring for the price
⭐ Fitness Features: 7/10 – Many sports modes and built-in GPS, but basic accuracy
⭐ Smart Features: 7/10 – Bluetooth calling is excellent, but limited app support
⭐ Battery Life: 8/10 – Good battery life without calling, but drops with frequent use
⭐ Value for Money: 8.5/10 – Excellent value at ₹1,399

Best For:

First-time smartwatch buyers: If you’ve never owned a smartwatch, this is an affordable way to explore the features. You get health tracking, notifications, and Bluetooth calling without spending much money.

Budget-conscious shoppers: At ₹1,399, the Fire-Boltt Hunter offers features that usually cost ₹2,000-₹3,000. If you want the most features for the least money, this is a good choice.

People who want a big display: The 2.01-inch screen is one of the largest in budget smartwatches. If you have trouble reading small screens, this watch makes everything easier to see.

Basic fitness tracking: If you want to count steps, track workouts, and monitor basic health metrics, this watch has everything you need. It’s not for serious athletes, but perfect for casual fitness enthusiasts.

Older adults: The large screen makes it easier for seniors to read notifications and check health data. The simple interface is easy to learn.

Not Ideal For:

Frequent Bluetooth calling users: If you plan to make many phone calls from the watch, the battery will drain to 2-3 days. This requires almost daily charging, which defeats the purpose of the longer battery life.

People who want premium displays: If you’ve used AMOLED smartwatches before, the TFT LCD screen will feel like a downgrade. The colors are less vibrant and the blacks aren’t as deep.

Serious athletes: The watch lacks advanced metrics like VO2 max, training load, or recovery time suggestions. GPS accuracy is basic. Competitive athletes should look at dedicated sports watches.

Those who need medical-grade health features: The watch doesn’t have ECG for heart rhythm analysis, fall detection, or skin temperature monitoring. It’s for wellness tracking, not medical diagnosis.

App enthusiasts: The proprietary operating system doesn’t support many third-party apps. If you want to install lots of apps on your watch, consider Wear OS alternatives.

Against Other Budget Smartwatches

The Fire-Boltt Hunter 51.1mm Review shows this watch stands out in its price range for several reasons:

Display Size: Most budget smartwatches have 1.7-1.85 inch displays. The Hunter’s 2.01-inch screen is significantly larger, making it easier to read notifications and interact with the watch.

Bluetooth Calling: Many watches under ₹1,500 don’t have Bluetooth calling. The Hunter includes this feature with good call quality, putting it ahead of cheaper options.

Battery Life: The 5-7 day battery life is better than many AMOLED smartwatches in the ₹2,000-₹2,500 range that last only 3-4 days.

Sports Modes: With 120+ sports modes, the Hunter offers more variety than many competitors that have 30-60 modes.

Trade-offs vs. Higher-Priced Options

Smartwatches in the ₹2,500-₹4,000 range offer:

AMOLED Displays: Brighter, more colorful screens with always-on display feature. The Fire-Boltt Hunter uses TFT LCD to save battery but sacrifices display quality.

Better Build Quality: Metal bodies and premium materials. The Hunter uses plastic with metallic coating.

More Advanced Health Features: Some include ECG monitoring, skin temperature sensors, or more accurate heart rate tracking.

Better GPS Accuracy: Higher-end fitness watches have more precise GPS tracking for serious athletes.

Longer Bluetooth Calling Battery: Some premium watches manage Bluetooth calling with less battery impact.

Price-to-Feature Ratio

At ₹1,399, the Fire-Boltt Hunter delivers about 70-80% of the features found in ₹3,000-₹4,000 smartwatches. The main compromises are:

• TFT LCD instead of AMOLED display
• Plastic build instead of metal
• Basic fitness tracking instead of advanced metrics
• No ECG or advanced health sensors

For budget buyers, these trade-offs are worth the significant price savings.

At ₹1,399, the Fire-Boltt Hunter 51.1mm Review shows excellent value because:

• Smartwatches with 2-inch displays usually cost ₹1,800-₹2,500
• Bluetooth calling watches typically start at ₹2,000
• You’re getting multiple features that individually cost more

The watch costs about ₹400-₹600 less than similar smartwatches with comparable features. This makes it one of the best budget options in early 2026.

What’s in the Box

When you buy the Fire-Boltt Hunter, you get:

• Fire-Boltt Hunter smartwatch
• Magnetic USB charging cable
• User manual
• Warranty card

Warranty: Fire-Boltt provides 1 year manufacturer warranty on the watch.

Pros (What We Like)

Largest display in budget segment – The 2.01-inch screen is one of the biggest you can find under ₹1,500. Reading notifications and interacting with the watch is much easier than on smaller displays. The 80% screen-to-body ratio means less bezel and more usable screen space.

Good battery life with normal use – The 5-7 day battery life is excellent for a smartwatch with continuous heart rate monitoring and daily activity tracking. You only need to charge it once a week with typical use, which is convenient.

Bluetooth calling at affordable price – Having a speaker and microphone for phone calls is rare in this price range. You can answer calls without taking out your phone, which is very convenient during workouts or when your hands are busy.

Comprehensive health tracking – The watch includes all basic health features: heart rate monitoring, SpO2 blood oxygen tracking, sleep analysis, and stress monitoring. These features help you understand your overall health.

Many sports modes – With 120+ sports modes, you can track almost any activity. The built-in GPS means you don’t need your phone for outdoor workouts, which is a great feature at this price.

IP67 water resistance – You can wear the watch while washing hands, in the rain, during workouts, or even while swimming. This makes it a reliable everyday watch that can handle normal water exposure.

Lightweight and comfortable – At just 36.8 grams, you barely feel the watch on your wrist. This makes it comfortable for all-day wear and sleeping (for sleep tracking).

Cons (Limitations to Know)

Battery drains fast with Bluetooth calling – If you make phone calls from the watch frequently, battery life drops to 2-3 days. This means almost daily charging, which reduces the main advantage of the longer battery life.

TFT LCD display quality – The screen is bright enough for outdoor use, but TFT LCD technology can’t match AMOLED displays in terms of color vibrancy, contrast, and deep blacks. If you’ve used AMOLED watches, this will feel like a step down.

No always-on display – You need to raise your wrist or press the button to see the time. This is less convenient than watches with always-on displays that show the time constantly.

Plastic build feels less premium – The watch uses plastic with metallic coating. While it looks okay, it doesn’t feel as solid as metal-bodied smartwatches. The build quality is acceptable for the price but not impressive.

Limited app ecosystem – The proprietary operating system means you can’t install many third-party apps. You’re limited to the features Fire-Boltt provides. This isn’t a problem for basic users but limiting for tech enthusiasts.

Missing advanced health features – There’s no ECG for heart rhythm monitoring, no fall detection for emergencies, and no skin temperature sensor. These features are important for some users but are typically found only in premium watches.

Basic GPS accuracy – The built-in GPS is good enough for casual tracking, but serious runners or cyclists will notice the accuracy isn’t as precise as dedicated sports watches.