Xiaomi Redmi 15 5G review: specs, battery & used prices

Summary

The Xiaomi Redmi 15 5G is a 2025 battery-first budget phone on the Snapdragon 6s Gen 3, pairing a 7000 mAh battery with a 6.9-inch 144 Hz IPS LCD rated at 850 nits and an IP64 body at 217 grams, with five years of OS updates declared. Our catalog scores it 80 on battery life but only 49 on everyday use and 10 on camera, framing the trade precisely. A single 50-megapixel main camera covers photography without stabilization. Tracked listings start at about $209 for the 4/128 GB trim. The Xiaomi Redmi 15 4G is the network-downgraded sibling, while the Xiaomi Redmi Note 15 4G is the Note-tier alternative.

Display and design

The 6.9-inch IPS LCD refreshes at 144 Hz, an unusually high rate for the panel type at this price, with an 850-nit rating scoring 53 on our screen axis. The 217-gram IP64 frame around the 7000 mAh cell earns a compactness score of 70: large and heavy, as expected from the endurance brief.

Performance

The Snapdragon 6s Gen 3 posts an everyday axis of 49 and a gaming axis of 8: essential apps and media run fine, while anything beyond casual gaming is outside the design. The five-year software window is the long-term argument, rare among battery-first budget phones.

Camera

Photography relies entirely on one 50-megapixel main camera; our records list no ultrawide or telephoto, and optical stabilization is absent. The camera axis of 10 places it at the bottom of the scoring range: daylight snapshots only, with indoor and low-light results the expected weakness.

Battery and charging

The 7000 mAh battery scores 80 on our battery axis, a true two-day phone at moderate use, while 33 W charging earns a charging axis of 15: refills are slow, and overnight charging is the practical rhythm. Endurance per dollar is the entire purchase argument.

Verdict

At about $209 new for 4/128 GB, the Redmi 15 5G is a pure endurance play: a 7000 mAh cell, a large 144 Hz screen and a five-year software runway at entry-level pricing, with camera and gaming explicitly sacrificed. Buyers wanting a camera in the same price bracket should check the Note 15 line.