Redmi Band 4 launches with a 21-day battery and 60Hz screen

Redmi has quietly launched the Redmi Band 4 in China, with sales starting today. The new fitness tracker succeeds the Redmi Band 3 from 2024 and brings changes to its frame, cover glass, and battery life.

Starting with, Redmi Band 4 features a metal-textured frame, a unibody design, along with 2.5D curved cover glass over the display. The screen measures 1.47 inches and refreshes at 60Hz. 

Redmi has added a vertical texture to the strap and updated the pin-style clasp to help keep it securely in place during workouts and everyday use.

The Band 4 is rated for up to 21 days on a single charge, three days longer than the Redmi Band 3’s 18 days. On regular monitoring, the battery life drops to 8 days, so how long it lasts will depend on which tracking features you use.

Those features cover the usual fitness band essentials, including all-day stress monitoring, heart rate tracking, blood oxygen readings, sleep tracking, and women’s health management. 

The stress monitoring feature tracks changes throughout the day, while you get 50 sports modes that record activities such as running, cycling, and table tennis. The band also has 5ATM water resistance.

Outside of workouts, the Redmi Band 4 can do the usual smart wearable stuff, including displaying message notifications, setting alarms, and switching between watch faces. It also supports payments through WeChat and Alipay QR codes in China. 

Redmi Band 4 misses NFC

A feature that’s gone missing on the Redmi Band 4 is NFC support. NFC. The Redmi Band 3 includes NFC for offline payments in China, but we didn’t find any mention of it on the new wearable. 

The Redmi Band series started at 99 yuan when the original Redmi Band launched in 2020. The latest model costs 169 yuan (~ $25), up from the Redmi Band 3’s launch price of 159 yuan.

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