Infinix SMART 9 HD Detailed Specs and Prices
The Infinix SMART 9 HD review highlights a pocket-friendly phone built for video, music and everyday use. Priced around ₹6,699 in India, this device shines with a large smooth display, long-lasting battery and clear stereo sound. Read on to see why it’s a strong choice for entertainment and which buyers should steer clear.
Overview
The Infinix SMART 9 HD launched in late 2024. It costs around ₹6,699 in India. This phone stands out with:
- A 6.7″ HD+ 90Hz display
- 5,000 mAh battery with 10 W charging
- Stereo speakers with DTS audio
- IP54 dust and splash resistance
It runs Android 14 Go Edition on a MediaTek Helio G50 chipset, paired with 3 GB RAM plus 3 GB virtual RAM. Storage is 64 GB, expandable to 1 TB via microSD. The cameras are simple but workable: 13 MP rear and 8 MP front.
Design & Build
The SMART 9 HD looks modern with clean lines and four color options: Metallic Black, Neo Titanium, Mint Green, and Coral Gold. The plastic back and frame feel sturdy, and the glass front gives a premium touch.
- Dimensions: 165.7 × 77.1 × 8.4 mm
- Weight: 188 g
- Build: Glass front, plastic back/frame
- IP54 rating: Dust and water splash resistance
A side-mounted fingerprint scanner sits on the power button for quick unlock. Above the display is a small notch for the front camera. The bottom edge has a USB-C port, mic, and mono speaker. The top has a 3.5 mm jack and second stereo speaker. This dual-speaker setup with DTS tuning gives richer sound than many budget phones.
Display & Audio
Display
- Size: 6.7″
- Type: IPS LCD
- Resolution: 720 × 1600 pixels (HD+)
- Refresh Rate: 90 Hz
- Brightness: Up to 500 nits peak
The screen is tall (20:9), making videos and web pages feel spacious. The 90 Hz refresh rate ensures smoother scrolling and animations. HD+ resolution keeps costs down, and text looks clear enough for daily use. Outdoor visibility is good in bright light, thanks to 500 nits peak brightness.
Audio
- Stereo speakers (top + bottom)
- DTS audio processing
- 3.5 mm headphone jack
Music and videos sound louder and fuller than on single-speaker phones. DTS tuning boosts bass and clarity. While you won’t get hi-fi quality, the audio is a step up for a budget device.
Performance & Software
Hardware
- Chipset: MediaTek Helio G50 (12 nm)
- CPU: Octa-core (8× Cortex-A53 @ 2.2 GHz)
- GPU: PowerVR GE8320
Memory
- RAM: 3 GB LPDDR4X
- Storage: 64 GB eMMC 5.1
- Expandable: microSD up to 1 TB
Software
- Android 14 Go Edition
- XOS 14 custom skin
The Helio G50 handles everyday tasks—calls, messaging, social apps—smoothly. Virtual RAM helps keep more apps open in the background. Expect occasional slowdowns in heavy multitasking or high-end gaming. Simple 3D games run well, but demanding titles will lag.
XOS 14 adds useful features: a dynamic side bar for quick tools, smart gestures, and an AI Gallery that cleans up your photos. The Go Edition OS is light and optimized, so storage and RAM feel less tight.
Camera
Rear Camera
- 13 MP main (f/1.9)
- Auxiliary depth sensor
Front Camera
- 8 MP (f/2.0)
Features
- Dual-LED rear flash
- LED front flash
- HDR, Panorama
- Portrait mode
Video
- 1080p @ 30 fps
Video tops out at 1080p30. Stabilization is minimal, so footage shakes if you walk. Overall, the cameras are fine for casual snaps and video calls but not for serious photography.
Battery Life & Charging
- Capacity: 5,000 mAh
- Charging: 10 W wired
- Type: Non-removable Li-Po
- Reverse wired charging
The large battery easily lasts a full day of mixed use: browsing, calls, video streaming, social media. Light users can stretch to two days. Charging from 0 → 50% takes about 1 hr 45 min. A full charge is ~3 hr, which feels long compared to 18 W or 33 W fast chargers. Reverse charging lets you share power via cable.
Memory & Storage
- 3 GB RAM
- 64 GB internal storage
- microSD slot up to 1 TB
Connectivity & Network
- Dual Nano-SIM
- 4G LTE, 3G, GSM
- VoLTE support
- Wi-Fi 802.11 a/b/g/n/ac (dual-band)
- Bluetooth 5.0
- GPS
- FM Radio
- OTG support
Extras & Security
- IP54 dust/water splash resistance
- Side-mounted fingerprint sensor
- Face unlock
- Dynamic side bar (quick tools)
- DTS audio
The IP54 rating gives peace of mind against spills or light rain. Fingerprint and face unlock work reliably. The dynamic side bar floats over apps for quick access to tools like screen recording, flashlight, or calculator.
Pros & Cons
Pros
- Smooth 90 Hz 6.7″ display
- Stereo speakers with DTS sound
- Long-lasting 5,000 mAh battery
- IP54 splash resistance
Cons
- Low-light photos are noisy
- Slow 10 W charging
- Only 3 GB RAM
Who Should Buy It?
The SMART 9 HD is best for multimedia consumption. If you watch lots of videos, play casual games, and need all-day battery on a budget under ₹7,000, this phone delivers. It’s also great for first-time smartphone buyers or kids.
Who Should Avoid It
– Power users who need high-end gaming or editing performance
– Mobile photographers wanting crisp, detailed photos in low light
– Anyone needing fast charging (18 W+) or 5G connectivit
FAQs
Q: Does it support 5G?
A: No, it supports up to 4G LTE only.
Q: Can I expand storage?
A: Yes, via a dedicated microSD slot up to 1 TB.
Q: How good is the camera in low light?
A: Low-light shots are grainy and lack detail.
Q: Does it have fast charging?
A: It supports 10 W wired charging, which is slower than many rivals.
Q: Is the screen smooth?
A: Yes, the 90 Hz refresh rate makes scrolling and animations fluid.