Between the CMF Phone 1 and Xiaomi 15, the CMF Phone 1 comes out ahead in screen size, while the Xiaomi 15 wins on antutu and wired charging. Overall, the CMF Phone 1 scores 61.4 and the Xiaomi 15 scores 70 on our Mars Score.
Which should you buy?
The Xiaomi 15 is the clear pick on raw spec strength, leading by 8.6 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the CMF Phone 1 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are screen size.
Pick the Xiaomi 15 if you photograph or shoot video regularly and want the better imaging pipeline of the two. Its strongest claims are antutu, wired charging, front camera, 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 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Nothing - CMF Phone 1 wins
- ▲Screen size — 4.87% more. 6.67 " vs 6.36 ".
Why Xiaomi 15 wins
- ▲AnTuTu — 378.57% more. 2680000 vs 560000.
- ▲Wired charging — 172.73% more. 90 W vs 33 W.
- ▲Front camera — 100.00% more. 32 MP vs 16 MP.
- ▲RAM — 50.00% more. 12 GB vs 8 GB.
- ▲Pixel density — 16.46% more. 460 ppi vs 395 ppi.
- ▲Battery capacity — 8.00% more. 5400 mAh vs 5000 mAh.
- ▲Weight — 5.00 g less. 192 vs 197.
- ▲Has Optical image stabilization.
Spec comparison
Design
| Spec | Nothing - CMF Phone 1 | Xiaomi 15 |
|---|---|---|
| Weight | 197 g | 192 glead |
| Thickness | 8.2 mm | 8.1 mmlead |
| Water resistanceⓘ | IP52 | IP68lead |
| Form factor | bar | bar |
Display
| Spec | Nothing - CMF Phone 1 | Xiaomi 15 |
|---|---|---|
| Screen sizeⓘ | 6.67 "lead | 6.36 " |
| Pixel densityⓘ | 395 ppi | 460 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 2000 nits | 3200 nitslead |
Performance
Cameras
| Spec | Nothing - CMF Phone 1 | Xiaomi 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 16 MP | 32 MPlead |
| Optical image stabilizationⓘ | false | truelead |
Battery
| Spec | Nothing - CMF Phone 1 | Xiaomi 15 |
|---|---|---|
| Battery capacity | 5000 mAh | 5400 mAhlead |
| Wired chargingⓘ | 33 W | 90 Wlead |
| Wireless chargingⓘ | 0 W | 50 Wlead |
Connectivity
| Spec | Nothing - CMF Phone 1 | Xiaomi 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | truelead | false |
Operating System
| Spec | Nothing - CMF Phone 1 | Xiaomi 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 2 years | 4 yearslead |
Frequently asked
Which has better battery, CMF Phone 1 or Xiaomi 15?+
Xiaomi 15 has 8.0% more battery — 5000 mAh vs 5400 mAh.
Which is lighter, CMF Phone 1 or Xiaomi 15?+
Xiaomi 15 is 5g lighter — 197g vs 192g.
Is CMF Phone 1 waterproof?+
CMF Phone 1 has an IP52 rating.
Does Xiaomi 15 support 5G?+
Yes, Xiaomi 15 supports 5G.
Which has more RAM, CMF Phone 1 or Xiaomi 15?+
Xiaomi 15 offers 12GB of RAM.
Which has a better camera, CMF Phone 1 or Xiaomi 15?+
Xiaomi 15 has a 50 MP main camera vs 50 MP.
Spec-level deep dives
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