Motorola Razr 50 Ultra vs Redmi K90
The Motorola Razr 50 Ultra (2024) runs on the Qualcomm Snapdragon 8s Gen 3, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 66/100 (a 10-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4000); the Redmi K90 is faster in AnTuTu (3,077,585 vs 1,797,821); the Motorola Razr 50 Ultra is noticeably lighter (189g vs 206g).
Profile comparison
Category scores
Motorola Razr 50 Ultra
Redmi K90
What makes Motorola Razr 50 Ultra better?
- Higher refresh rate: 165Hz vs 120Hz
- Lighter: 189g vs 206g
- Better display (91/100 vs 82/100)
- Better portability (75/100 vs 55/100)
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 1797821
- Better Geekbench Single: 3013 vs 1923
- Better Geekbench Multi: 9287 vs 5179
- Bigger battery: 7100 vs 4000 mAh
- Faster charging: 100W vs 45W
- Higher performance (91/100 vs 75/100)
- Longer battery life (72/100 vs 36/100)
Comparison verdict
Comparing the Motorola Razr 50 Ultra vs the Redmi K90, the Redmi K90 scores 10 points higher (76/100 vs 66/100). In the "performance" category, the Redmi K90 leads (91/100 vs 75/100). In the "battery" category, the Redmi K90 leads (72/100 vs 36/100). In the "performance" category, the Redmi K90 notably outperforms the Motorola Razr 50 Ultra (91/100 vs 75/100). In the "display" category, the Motorola Razr 50 Ultra is a bit better (91/100 vs 82/100). In the "camera" category, both devices are on the same level — 58/100. In the "battery" category, the Redmi K90 significantly outperforms the Motorola Razr 50 Ultra (72/100 vs 36/100). In the "portability" category, the Motorola Razr 50 Ultra notably outperforms the Redmi K90 (75/100 vs 55/100).
Specs comparison
| Specification | Motorola Razr 50 Ultra | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8s Gen 3 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 1797821 | 3077585 | |
| Geekbench Single | 1923 | 3013 | |
| Geekbench Multi | 5179 | 9287 | |
| Display | 6.9" Foldable LTPO AMOLED | 6.6" AMOLED | |
| Resolution | 1080x2640 | 2510x1156 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 4000 mAh | 7100 mAh | |
| Charging | 45W | 100W | |
| Wireless charging | 15W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 14, up to 3 major Android upgrades | Android 16 | |
| Brightness (peak) | 3000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IPX8 | IP68 | |
| Dimensions | 171.4×74.0×7.1 mm | 157.5×75.3×8.0 mm | |
| Weight | 189 g | 206 g | |
| Launch price | — | $401 |
Camera comparison
Motorola Razr 50 Ultra
- Main: 50MP f/1.7
- Telephoto: 50MP
- Front: 32MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Motorola Razr 50 Ultra
- 6.9" Foldable LTPO AMOLED
- Resolution: 1080x2640
- Refresh rate: 165 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Motorola Razr 50 Ultra
- 4000 mAh
- Wired: 45W
- Wireless: 15W
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Motorola Razr 50 Ultra and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Motorola Razr 50 Ultra by 41.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Motorola Razr 50 Ultra
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 notably outperforms the Motorola Razr 50 Ultra (91/100 vs 75/100).
display
In the "display" category, the Motorola Razr 50 Ultra is a bit better (91/100 vs 82/100).
camera
In the "camera" category, both devices are on the same level — 58/100.
battery
In the "battery" category, the Redmi K90 significantly outperforms the Motorola Razr 50 Ultra (72/100 vs 36/100).
portability
In the "portability" category, the Motorola Razr 50 Ultra notably outperforms the Redmi K90 (75/100 vs 55/100).
Frequently asked questions
Which is better: the Motorola Razr 50 Ultra or the Redmi K90?
The Redmi K90 is noticeably better than the Motorola Razr 50 Ultra — the overall rating gap is 10 points.
What is the rating of the Motorola Razr 50 Ultra and the Redmi K90?
The Motorola Razr 50 Ultra has a MobileRank rating of 66/100, the Redmi K90 — 76/100.
Which is more powerful: the Motorola Razr 50 Ultra or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 75/100).
Should you choose the Motorola Razr 50 Ultra over the Redmi K90?
The Motorola Razr 50 Ultra is a better fit for active users. The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.