Nothing Phone (4b) vs Redmi K90
The Nothing Phone (4b) (2026) runs on the Qualcomm Snapdragon 6 Gen 4, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $355 and $401. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 55/100 (a 21-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 5200); the Redmi K90 is faster in AnTuTu (3,077,585 vs 975,254).
Profile comparison
Category scores
Nothing Phone (4b)
Redmi K90
What makes Nothing Phone (4b) better?
- Cheaper at launch: $355 vs $401
- Overall rating 55/100
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 975254
- Better Geekbench Single: 3013 vs 1087
- Better Geekbench Multi: 9287 vs 3148
- Bigger battery: 7100 vs 5200 mAh
- Faster charging: 100W vs 33W
- Lighter: 206g vs 210g
- Higher performance (91/100 vs 58/100)
- Better camera (58/100 vs 35/100)
- Longer battery life (72/100 vs 59/100)
- Better display (82/100 vs 79/100)
- Better portability (55/100 vs 47/100)
Comparison verdict
Comparing the Nothing Phone (4b) vs the Redmi K90, the Redmi K90 scores 21 points higher (76/100 vs 55/100). In the "performance" category, the Redmi K90 leads (91/100 vs 58/100). In the "camera" category, the Redmi K90 leads (58/100 vs 35/100). In the "battery" category, the Redmi K90 leads (72/100 vs 59/100). Value score: Nothing Phone (4b) — 42/100, Redmi K90 — 80/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 significantly outperforms the Nothing Phone (4b) (91/100 vs 58/100). In the "display" category, the Redmi K90 and the Nothing Phone (4b) are nearly equal (82/100 vs 79/100). In the "camera" category, the Redmi K90 notably outperforms the Nothing Phone (4b) (58/100 vs 35/100). In the "battery" category, the Redmi K90 is a bit better (72/100 vs 59/100). In the "portability" category, the Redmi K90 is a bit better (55/100 vs 47/100).
Specs comparison
| Specification | Nothing Phone (4b) | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6 Gen 4 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 975254 | 3077585 | |
| Geekbench Single | 1087 | 3013 | |
| Geekbench Multi | 3148 | 9287 | |
| Display | 6.8" AMOLED | 6.6" AMOLED | |
| Resolution | 1080x2344 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5200 mAh | 7100 mAh | |
| Charging | 33W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 2000 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | 164.4×78.2×8.6 mm | 157.5×75.3×8.0 mm | |
| Weight | 210 g | 206 g | |
| Launch price | $355 | $401 |
Camera comparison
Nothing Phone (4b)
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Nothing Phone (4b)
- 6.8" AMOLED
- Resolution: 1080x2344
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Nothing Phone (4b)
- 5200 mAh
- Wired: 33W
- Wireless charging: no data
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Nothing Phone (4b) and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Nothing Phone (4b) by 68.3% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $46. Nothing Phone (4b) was $46 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Nothing Phone (4b) (91/100 vs 58/100).
display
In the "display" category, the Redmi K90 and the Nothing Phone (4b) are nearly equal (82/100 vs 79/100).
camera
In the "camera" category, the Redmi K90 notably outperforms the Nothing Phone (4b) (58/100 vs 35/100).
battery
In the "battery" category, the Redmi K90 is a bit better (72/100 vs 59/100).
portability
In the "portability" category, the Redmi K90 is a bit better (55/100 vs 47/100).
Frequently asked questions
Which is better: the Nothing Phone (4b) or the Redmi K90?
The Redmi K90 significantly outperforms the Nothing Phone (4b) by 21 points (76/100 vs 55/100).
What is the rating of the Nothing Phone (4b) and the Redmi K90?
The Nothing Phone (4b) has a MobileRank rating of 55/100, the Redmi K90 — 76/100.
Which has the better camera: the Nothing Phone (4b) or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 35/100).
Which is more powerful: the Nothing Phone (4b) or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 58/100).
Should you choose the Nothing Phone (4b) over the Redmi K90?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.