Xiaomi Redmi 15 5G
By Muhammad Tahir · Updated June 2026 · how we review
A 7,000mAh battery and a 6.9-inch 144Hz screen for $180. The Redmi 15 5G is built for people who want the phone to last two days and do not much care what the panel technology is — because it is LCD, not AMOLED.
Is the Redmi 15 5G still supported?
Our estimateSupported until August 2029 · Buy-by August 2027
✓ Yes — the Redmi 15 5G is expected to be supported until August 2029, roughly 3.0 more years.
Apple doesn't publish an end date, but iPhones have a consistent ~4-year update track record — on that basis the Redmi 15 5G should be supported until around August 2029. Buying it today still gets you about 3.0 years of safe use, and Apple's written legal minimum is 5 years (verified June 2026).
Source: Xiaomi's official policy · last verified 2026-06-17 · how we compute this · what happens when support ends
TrueCost
Street price ÷ months of safe use remaining. How we compute it.
22% cheaper than the under-$300 median ($6.38/mo, dying phones excluded)
Should you buy the Redmi 15 5G in 2026?
Pros
- 7,000mAh battery, among the largest in any phone we track
- 6.9-inch 144Hz FHD+ display — a very high refresh rate for the price
- 18W reverse wired charging lets it top up other devices
- IR blaster for controlling TVs and air conditioners
- IP64 splash and dust resistance
Cons
- IPS LCD rather than AMOLED, so contrast and black levels are ordinary
- 33W charging is slow for a 7,000mAh cell — expect well over 90 minutes
- Wi-Fi 5 only, and the 2MP depth sensor is a spec-sheet filler
Full specifications
Display
| Screen | 6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak |
|---|
Performance
| Chipset | Qualcomm Snapdragon 6s Gen 3 |
|---|---|
| RAM | 4GB / 6GB / 8GB |
| Storage | 128GB / 256GB |
Cameras
| main | 50MP |
|---|---|
| depth | 2MP |
| front | 8MP |
Battery & charging
| Battery | 7,000 mAh |
|---|---|
| Charging | 33W wired, 18W reverse wired |
Build
| Dimensions | 169.5 × 80.5 × 8.4 mm |
|---|---|
| Weight | 217 g |
| Materials | Gorilla Glass 3 front, plastic frame and back |
| Water resistance | IP64 |
Software & connectivity
| Software | Android 15 with HyperOS 2 at launch |
|---|---|
| Connectivity | 5G, Wi-Fi 5, Bluetooth 5.1, NFC, infrared, USB-C |
| Update policy | ~2 years of updates (our estimate from Xiaomi's track record — written minimum is 5 years) |
Better-value alternatives
Similar price, lower cost per month of safe ownership.
Frequently asked questions
How long will the Redmi 15 5G receive updates?
We estimate August 2029 — two OS upgrades and around four years of security patches from its August 2025 release. That is notably shorter than Samsung's six-year commitment at a similar price, and it is an estimate from Xiaomi's Redmi track record rather than a published guarantee. Longevity is this phone's weakest dimension.
How long does a 7,000mAh battery actually last?
For moderate use, comfortably two days. The Snapdragon 6s Gen 3 is an efficient chip and the FHD+ LCD, while less attractive than AMOLED, is not especially power-hungry at default refresh rates. Running the display at 144Hz constantly will cut into that, but even heavy users should clear a full day with room to spare.
Why is the Redmi 15 5G so heavy?
217g is the direct cost of a 7,000mAh battery and a 6.9-inch screen. There is no way to package that much cell capacity without weight. If you want long battery life in a lighter body, you are looking at silicon-carbon batteries in more expensive phones like the Poco F7 series, which fit 6,500mAh at a similar weight.
Is the LCD screen a dealbreaker?
It depends what you use the phone for. An IPS LCD at 850 nits is perfectly readable and the 144Hz refresh makes it feel smooth. What you lose is true blacks, the deep contrast of OLED, and HDR performance — most obvious when watching video in a dark room. For messaging, browsing and navigation you will rarely think about it.
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Specs are collected from manufacturer documentation; prices reflect major US retailers and change often. Support end dates follow each brand's official policy (or, for Apple, its documented historical pattern). Last verified 2026-06-17.