Infinix Smart 20: 120Hz screen and off-grid messaging for £190
The Infinix Smart 20 launched in March 2026 as the successor to last year's Smart 10, priced at £190 in the UK via Amazon, O2, and Vodafone. For that money you get a 6.78-inch 120Hz display, a 5,200mAh battery, and Android 16 out of the box — a combination that undercuts most rivals at this tier. The catch: 15W charging is noticeably slow even by budget standards in 2026, where most competitors now ship with at least 25W.
The screen and chip
The IPS panel runs at 120Hz, which means smoother scrolling and animation than the 60Hz norm at this price. Resolution stays at HD+, so text won't be razor-sharp, but the 700-nit brightness is enough to read outside without hunting for shade. Under the hood sits a MediaTek Helio G81 Ultimate paired with 4GB RAM and up to 128GB of storage, expandable to 2TB via microSD. The phone ships with Android 16 and Infinix's XOS 16 skin on top, which is a genuine selling point at this price — many rivals still launch on older Android versions.
Infinix Smart 20 in its slim chassis. Illustration: Infinix
UltraLink and battery life
The headline feature Infinix is pushing is UltraLink — a peer-to-peer data-sharing technology that the company claims works up to 1km without a mobile network. Think of it as a long-range Bluetooth-style link: useful for hiking or festivals where signal drops out. It's a niche feature, but genuinely uncommon at this price.
Battery capacity sits at 5,200mAh, which should comfortably cover a full day of use. The reverse wired charging lets the Smart 20 top up headphones or a friend's phone, which is a handy addition. The 15W charging speed, however, is the phone's clearest weakness: GSMArena specs confirm it, and by comparison the Redmi Turbo 5 offers a 7,540mAh battery with faster charging — a direct alternative worth considering.
Key specs at a glance. Illustration: Infinix
Cameras and extras
Both the rear and front cameras are 8MP sensors — fine for video calls and scanning documents, not a strong point for photography. The rest of the package includes stereo speakers with DTS support, a side-mounted fingerprint scanner, an IR blaster for controlling home appliances, and IP64 dust and splash protection. The IP64 rating addresses a real concern for UK buyers who use their phones outdoors in unpredictable weather.
Worth it?
At £190, the Smart 20 makes sense if you prioritise screen smoothness, battery endurance, and up-to-date software over camera quality or fast charging. According to MobileInto UK, both 4GB/64GB and 4GB/128GB variants are available now. If charging speed and raw durability matter more to you, the Redmi Turbo 5 is the more capable alternative — but it costs more.