Between the Phone (3) and Xiaomi 15 Pro, the Phone (3) comes out ahead in weight and promised os updates, while the Xiaomi 15 Pro wins on wireless charging and wired charging. Overall, the Phone (3) scores 68.7 and the Xiaomi 15 Pro scores 74 on our Mars Score.
Which should you buy?
The Xiaomi 15 Pro edges ahead on the Mars Score (68.7 vs 74), but the 5.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Phone (3) if you carry the device everywhere and weight or thickness has been the deciding factor before. The biggest gaps in its favor are weight, promised os updates.
Pick the Xiaomi 15 Pro if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are wireless charging, wired charging, ram, among others.
Both ship with comparable main camera, refresh rate, 5g support, so those specs don't separate the two — focus on the differences below.
Bottom line: the Xiaomi 15 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Nothing - Phone (3) wins
- ▲Weight — 17.00 g less. 196 vs 213.
- ▲Promised OS updates: 5 (vs 4).
Why Xiaomi 15 Pro wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Wired charging — 38.46% more. 90 W vs 65 W.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲AnTuTu — 32.20% more. 2710000 vs 2050000.
- ▲Battery capacity — 18.45% more. 6100 mAh vs 5150 mAh.
- ▲Pixel density — 13.48% more. 522 ppi vs 460 ppi.
- ▲Screen size — 0.45% more. 6.73 " vs 6.7 ".
Spec comparison
Design
| Spec | Nothing - Phone (3) | Xiaomi 15 Pro |
|---|---|---|
| Weight | 196 glead | 213 g |
| Thickness | 8.4 mm | 8.4 mm |
| Water resistanceⓘ | IP68 | IP68 |
| Form factor | bar | bar |
Display
| Spec | Nothing - Phone (3) | Xiaomi 15 Pro |
|---|---|---|
| Screen sizeⓘ | 6.7 " | 6.73 "lead |
| Pixel densityⓘ | 460 ppi | 522 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 4500 nitslead | 3200 nits |
Performance
Cameras
| Spec | Nothing - Phone (3) | Xiaomi 15 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Nothing - Phone (3) | Xiaomi 15 Pro |
|---|---|---|
| Battery capacity | 5150 mAh | 6100 mAhlead |
| Wired chargingⓘ | 65 W | 90 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Nothing - Phone (3) | Xiaomi 15 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Nothing - Phone (3) | Xiaomi 15 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 5 yearslead | 4 years |
Frequently asked
Which has better battery, Phone (3) or Xiaomi 15 Pro?+
Xiaomi 15 Pro has 18.4% more battery — 5150 mAh vs 6100 mAh.
Which is lighter, Phone (3) or Xiaomi 15 Pro?+
Phone (3) is 17g lighter — 196g vs 213g.
Is Phone (3) waterproof?+
Phone (3) has an IP68 rating.
Does Xiaomi 15 Pro support 5G?+
Yes, Xiaomi 15 Pro supports 5G.
Which has more RAM, Phone (3) or Xiaomi 15 Pro?+
Xiaomi 15 Pro offers 16GB of RAM.
Which has a better camera, Phone (3) or Xiaomi 15 Pro?+
Xiaomi 15 Pro has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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