REDMI Note 15 vs vivo X100 Ultra
21.8Performance64.4
65.5Display67.6
36.4Camera75.8
57.3Battery75.5
60Features86.7
6 spec wins — REDMI Note 158 spec wins — vivo X100 Ultra
InnoReviews verdict
vivo X100 Ultra wins this phone face-off, 71.8 to 44.4, pulling ahead mainly in performance (+43) and camera (+39). REDMI Note 15 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the REDMI Note 15
- 116% higher Main camera: 108 MP vs 50 MP
- 20% lower weight: 184 g vs 229 g
- 14% lower thickness: 7.9 mm vs 9.2 mm
Reasons to pick the vivo X100 Ultra
- Stronger performance score: 64 vs 22
- Stronger camera score: 76 vs 36
- Stronger battery score: 76 vs 57
- Stronger features score: 87 vs 60
- 150% higher Front camera: 50 MP vs 20 MP
Display
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| Screen size | 6.77 ″ | 6.78 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1080x2392 | 1440x3200 |
| Pixel density | 388 ppi | 517 ppi+33% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,200 nits+7% | 3,000 nits |
| Screen-to-body | 93.7 %+4% | 89.8 % |
Performance
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| Chipset | MediaTek Helio G100 Ultra | Qualcomm Snapdragon 8 Gen 3 |
| Geekbench 6 (single) | 738Bottom 16% | — |
| Geekbench 6 (multi) | 1,990Bottom 17% | — |
| RAM (max) | 8 GB | 16 GB+100% |
| Storage options | 128/256/512GB | 256/512GB/1TB |
| Storage type | UFS 2.2 | UFS 4.0 |
Camera
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| Main camera | 108 MP+116% | 50 MP |
| Main aperture | f/1.7 | f/1.75 |
| Ultra-wide | — | 50 MP |
| Telephoto | — | 200 MP |
| Optical zoom | — | 3.7 x |
| Max video | 1080p@60fps | 8K@30fps |
| Front camera | 20 MP | 50 MP+150% |
| OIS | No | Yes |
Battery
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| Capacity | 6,000 mAh+9% | 5,500 mAh |
| Wired charging | 33 W | 80 W+142% |
| Wireless charging | 0 W | 30 W |
| Active use endurance | — | 12.9 h |
Design
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| Weight | 184 g+20% | 229 g |
| Thickness | 7.9 mm+14% | 9.2 mm |
| IP rating | IP64 | IP68/IP69 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| 5G | No | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.3 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | No |
Software
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| OS at launch | Android 15 (HyperOS 2) | Android 14 (OriginOS 4) |
Audio
| Spec | REDMI Note 15 | vivo X100 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |