Key Highlights
6.78-inch 120Hz HD+ Display
MediaTek Helio G81 Ultimate Processor
5200mAh Long-Lasting Battery
Android 16 with XOS 16
IP64 Dust & Water Resistance
IR Blaster + NFC Support
Infinix has officially launched the Infinix Smart 20 in India, and honestly, it continues the brand’s familiar approach — big display, long battery life, and aggressive pricing for budget users.
What immediately grabs attention is the combination of a 120Hz refresh rate display and a 5200mAh battery at just ₹12,499. That’s the kind of specification mix that usually attracts students, first-time smartphone buyers, and users upgrading from entry-level devices.
Interestingly, Infinix has also focused on design this time. The phone is just 7.7mm thin, which is actually impressive for a device packing such a large battery. It clearly aims to balance style with practicality.
| Feature | Details |
|---|---|
| Brand | Infinix |
| Model | Smart 20 (X6840) |
| Display | 6.78-inch HD+ IPS LCD, 120Hz |
| Processor | MediaTek Helio G81 Ultimate |
| RAM & Storage | 4GB + 64GB / 4GB + 128GB |
| Rear Camera | 8MP Single Camera |
| Front Camera | 8MP Selfie Camera |
| Battery | 5200mAh |
| Charging | 15W Wired, 5W Reverse Charging |
| OS | Android 16 with XOS 16 |
| Build | Glass front, plastic frame & back |
| Network | 4G LTE |
| Protection | IP64 Rating |
Design & Build
The Smart 20 focuses heavily on a slim and lightweight design, measuring just 7.7mm in thickness. That’s actually one of its strongest physical highlights.
The back panel comes in four color options, and each one has a slightly youthful, vibrant feel — especially Sunlight Orange, which stands out immediately.
What’s interesting is that despite being a budget phone, it still includes IP64 protection along with drop resistance up to 1.5 meters. That adds a layer of durability you don’t always see in this segment.
In hand, it feels simple but not cheap — more like a practical everyday device rather than a flashy one.
Display
The 6.78-inch HD+ IPS LCD display with 120Hz refresh rate is one of the key selling points here.
Scrolling through apps feels noticeably smoother compared to standard 60Hz phones. Even basic tasks like WhatsApp, Instagram, and browsing feel more responsive.
Brightness peaks at around 700 nits, which is decent for indoor and moderate outdoor use. Interestingly, Infinix also includes Always-On Display features even on this LCD panel, which is a nice software touch.
Of course, being HD+ means it’s not the sharpest screen, but at this price, the smoothness matters more than pixel density.
Performance
Under the hood, the MediaTek Helio G81 Ultimate handles everyday tasks.
During normal usage, apps open at a steady pace, multitasking feels stable, and social media usage is smooth enough for daily needs. It’s not built for heavy gaming, but it handles light games and casual use comfortably.
Games like Free Fire or Subway Surfers run smoothly, while BGMI or COD Mobile require lower graphics settings.
Honestly, this is more of a “reliable daily driver” than a performance-focused device — and that’s exactly what its target audience needs.
Camera
The phone features an 8MP rear camera and an 8MP selfie camera.
In daylight, photos come out decent with slightly boosted colors, which actually works well for social media uploads. The camera isn’t trying to be realistic — it’s more about making images look presentable quickly.
Interestingly, the camera app includes multiple modes like Super Night, Portrait, AI Cam, and Pro mode, which add some flexibility even in a budget setup.
Low-light performance is basic, and that’s expected, but for WhatsApp photos and casual photography, it gets the job done.
Battery & Charging
The 5200mAh battery is one of the strongest aspects of the Smart 20.
For most users, it easily lasts a full day and a half with mixed usage. Even heavier users should get through a full day without reaching for the charger.
Charging support includes:
- 15W wired charging
- 5W reverse charging
Charging speeds are not very fast, but the endurance somewhat balances that out.
Storage & Connectivity
The Infinix Smart 20 offers:
- 64GB / 128GB storage options
- Expandable storage up to 2TB
Connectivity features include:
- 4G LTE
- Wi-Fi (a/b/g/n/ac)
- Bluetooth support
- NFC
- IR Blaster
- GPS
- USB Type-C
- 3.5mm headphone jack
The inclusion of NFC and IR Blaster is a strong advantage in this segment.
Price & Availability
The Infinix Smart 20 is available in India with the following pricing:
- 4GB x 64GB → ₹12,499
- 4GB x 128GB → ₹13,999
Offers
- ₹500 bank discount on select cards
- Additional launch discounts up to ₹1,100 on specific bank offers
Availability
- Available via Flipkart and Infinix official store
- Colors: Polaris Titanium, Sunlight Orange, Cloudline Blue, Shadow Black
At this pricing, the phone sits directly in one of the most competitive budget segments in India.
Availability:
- Available via Flipkart and Infinix official website
- Color options: Polaris Titanium, Sunlight Orange, Cloudline Blue, Shadow Black
- Bank discount: ₹500 on select cards
At this price point, the device sits directly in the competitive entry-level segment where every extra feature matters.
Pros & Cons
Pros
✔ Smooth 120Hz display
✔ Large 5200mAh battery
✔ Affordable pricing
✔ NFC + IR Blaster support
✔ IP64 protection
✔ Expandable storage
Cons
✖ Basic 8MP cameras
✖ HD+ resolution only
✖ Average gaming performance
✖ Slow charging speeds
Final Verdict
The Infinix Smart 20 is clearly built for budget-conscious users who want a large display, long battery life, and smooth basic performance without spending much.
It doesn’t try to be a performance or camera-focused phone — and that honesty actually works in its favor. If your priorities are battery backup, big screen experience, and everyday reliability, this phone makes a lot of sense.
FAQs
Is Infinix Smart 20 good for gaming?
It handles light gaming well, but heavy games need low settings.
What is the battery capacity of Infinix Smart 20?
It comes with a 5200mAh battery.
Does Infinix Smart 20 support 5G?
No, it supports up to 4G LTE.
What is the display refresh rate?
It offers a 120Hz refresh rate display.
What is the price of Infinix Smart 20 in India?
The starting price is ₹12,499.













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