The Infinix 5,200mAh cell is the most practical win here. Most phones in this price range ship with 5,000mAh. The extra capacity adds up across a day of WhatsApp, YouTube, and calls — you’ll realistically get into day two without hunting for a charger. Charging, though, is 15W. That’s slow by 2026 standards. Budget around 2.5 to 3 hours from zero to full.
The reverse charging (5W) is a nice bonus — useful if a friend’s phone dies and yours is at 80%.
The Display Is Better Than Expected
A 6.78-inch screen at 120Hz, inside Rs.14,000, is genuinely rare. It won’t win against AMOLED panels in this price bracket (there aren’t many), but the IPS LCD hits 700 nits peak and handles daylight visibility well. HD+ resolution at 240 ppi looks fine for social media and video. If you’re sitting close squinting at text, you’ll notice the pixels. For everything else, it works.
UltraLink Is the Most Interesting Feature
Infinix built in an offline walkie-talkie function that works up to 1km between compatible devices — no SIM, no network, no internet. This sounds like a gimmick until you’re in a basement, a crowded event, or a rural area with patchy coverage. It only works phone-to-phone between Infinix devices, but that limitation matters less if you’re recommending this phone to family members or handing one to a colleague.
No other phone in this segment does this.
Performance: Enough for Daily Use, Not Much More
The MediaTek Helio G81 Ultimate handles calls, Instagram, YouTube, and light multitasking without complaint. The 4GB physical RAM stretches to 8GB via MemFusion (virtual RAM borrowed from storage). Don’t expect miracles — eMMC 5.1 storage is slower than mid-range UFS, and heavy gaming will show the limits. PUBG and COD Mobile run at low settings. That’s the ceiling.
Cameras: Honest About Their Limits
Both front and rear cameras are 8MP with f/2.0 aperture. They shoot 2K video, which is good. They lack OIS and 4K, which matters less at this price. Daytime shots are fine for sharing. Night shots are usable with the dedicated night mode. Don’t buy this phone expecting anything close to a mid-range camera experience — but if your main use is WhatsApp photos and Instagram stories, it covers that.
Build and Design
At 7.7mm thick and 189g, it’s slim and light for a phone with this battery. The IP64 rating means dust and splash resistance — reasonable outdoor durability. No Gorilla Glass, though. Stereo speakers with DTS processing are a surprise inclusion; audio is noticeably better than mono-speaker phones at this price.
What It’s Missing
No 5G. No NFC (no tap-to-pay). No 5GHz Wi-Fi. These aren’t deal-breakers for most buyers in the under Rs.14,000 range, but they’re worth knowing upfront.
Who Should Buy This
Students, first-time smartphone buyers, backup phone users, and anyone in a rural or semi-urban area where offline communication matters. The Rs.12,499 base price (Rs.11,999 with bank discount) is competitive against Redmi 13C and Realme C55, with a better display and a genuinely unique feature set.
If 5G is a priority, spend more. For pure value at this price, the Smart 20 4G is hard to argue with.
Quick Verdict: A surprisingly capable phone for under Rs.13,000. The battery, display, and offline calling feature make it a standout.
| Category | Spec | Detail |
| Price | 4GB + 64GB | Rs.12,499 (Rs.11,999 with bank discount) |
| 4GB + 128GB | Rs.13,999 (Rs.13,499 with bank discount) | |
| Sale date | June 12, 2026 via Flipkart | |
| Display | Size & type | 6.78-inch IPS LCD, HD+ |
| Resolution | 1576 × 720 px | |
| Refresh rate | 120Hz | |
| Brightness | 700 nits peak | |
| Extras | Always-On Display, Dynamic Bar | |
| Processor | Chipset | MediaTek Helio G81 Ultimate (12nm) |
| CPU | Octa-core 2.0GHz | |
| GPU | ARM Mali-G52 | |
| Memory | RAM | 4GB physical + 4GB virtual = 8GB total |
| Storage | 64GB or 128GB eMMC 5.1 | |
| Expandable | Up to 2TB microSD | |
| OS | Version | Android 16 with XOS 16 |
| Camera | Rear | 8MP f/2.0, dual-LED flash |
| Front | 8MP f/2.0 | |
| Video | 2K @ 30fps (front & rear) | |
| Battery | Capacity | 5,200mAh |
| Charging | 15W USB-C wired | |
| Reverse charge | 5W wired | |
| Connectivity | Network | Dual 4G VoLTE (no 5G) |
| Wi-Fi | 2.4GHz only (no 5GHz) | |
| Bluetooth | 5.2 | |
| NFC | No | |
| USB | Type-C 2.0 | |
| Audio | Speakers | Stereo with DTS |
| Headphone jack | 3.5mm | |
| FM Radio | Yes | |
| Build | Dimensions | 167.7 × 78.8 × 7.7mm |
| Weight | 189g | |
| IP rating | IP64 | |
| Colors | Sunlike Orange, Cloudline Blue, Shadow Black, Polaris Titanium | |
| Special features | UltraLink | Offline calling up to 1km, no SIM needed |
| AI button | Dedicated physical button | |
| Face unlock | Yes | |
| Fingerprint | Side-mounted |