An unexpected case: the new model isn't better than the old one in every way. Let's see what Xiaomi simplified.
Short answer
Redmi 17 - a 7500 mAh battery, 45 W and a 3.5 mm jack. Redmi 15 - an FHD+ 144 Hz display, lighter (214 g) and an 8/256 GB top version.
Key differences
| Spec | Redmi 17 | Redmi 15 |
|---|---|---|
| Chip | MediaTek Helio G91-Ultra | Qualcomm Snapdragon 685 |
| Display | 6.9", LCD, 720×1600, 120 Hz | 6.9", LCD, 1080×2340, 144 Hz |
| RAM / storage | 4/128 GB, 4/256 GB, 6/128 GB, 6/256 GB | 6/128 GB, 8/128 GB, 8/256 GB |
| Rear cameras | 50 MP | 50 MP |
| Front | 8 MP | 8 MP |
| Battery | 7500 mAh | 7000 mAh |
| Charging | 45 W | 33 W |
| Protection | IP64 | IP64 |
| Thickness / weight | 8.8 mm / 232 g | 8.4 mm / 214 g |
| Price | current prices | current prices |
Specs come from the device pages on Smartphone.ua.
Display
Redmi 15 - 1080×2340 and 144 Hz; Redmi 17 - 720×1600 and 120 Hz. For video the 15 is noticeably better.
Chips
MediaTek Helio G91-Ultra and Qualcomm Snapdragon 685.
Battery and weight
The Redmi 17 lasts longer, but weighs 232 g.
Verdict: who should buy which
- Battery life and wired headphones - Redmi 17.
- Display and lightness - Redmi 15.
FAQ
What battery does the Redmi 17 have?
7500 mAh.
Does the Redmi 15 have a 3.5 mm jack?
No.
What's the Redmi 17's resolution?
HD+ 720×1600.