Redmi K90 vs ZTE S30
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the ZTE S30 (2021) runs on the Qualcomm Snapdragon 720G. By overall MobileRank rating, the Redmi K90 leads — 68/100 vs 24/100 (a 44-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4000); the main camera is 50 MP vs 64 MP; the Redmi K90 is faster in AnTuTu (3,088,357 vs 514,398); the Redmi K90 has NFC for contactless payments, the ZTE S30 doesn't; the ZTE S30 is noticeably lighter (184g vs 206g).
Redmi K90
ZTE S30
- Higher AnTuTu: 3088357 vs 514398
- Better Geekbench Single: 3050 vs 746
- Better Geekbench Multi: 9300 vs 1762
- Bigger battery: 7100 vs 4000 mAh
- Faster charging: 100W vs 30W
- Higher refresh rate: 120Hz vs 90Hz
- Higher performance (69/100 vs 0/100)
- Better camera (53/100 vs 40/100)
- Longer battery life (71/100 vs 14/100)
- Better display (100/100 vs 50/100)
- Better value for money (82/100 vs 55/100)
- Better main camera: 64MP vs 50MP
- Lighter: 184g vs 206g
- Better design/ergonomics (70/100 vs 42/100)
Comparing the Redmi K90 vs the ZTE S30, the Redmi K90 scores 44 points higher (68/100 vs 24/100). In the "performance" category, the Redmi K90 leads (69/100 vs 0/100). In the "camera" category, the Redmi K90 leads (53/100 vs 40/100). In the "battery" category, the Redmi K90 leads (71/100 vs 14/100). In the "value for money" category, the Redmi K90 leads (82/100 vs 55/100). In the "performance" category, the Redmi K90 significantly outperforms the ZTE S30 (69/100 vs 0/100). In the "display" category, the Redmi K90 significantly outperforms the ZTE S30 (100/100 vs 50/100). In the "camera" category, the Redmi K90 is a bit better (53/100 vs 40/100). In the "battery" category, the Redmi K90 significantly outperforms the ZTE S30 (71/100 vs 14/100). In the "design" category, the ZTE S30 notably outperforms the Redmi K90 (70/100 vs 42/100). In the "value for money" category, the Redmi K90 notably outperforms the ZTE S30 (82/100 vs 55/100).
| Specification | Redmi K90 | ZTE S30 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 720G | |
| AnTuTu | 3088357 | 514398 | |
| Geekbench Single | 3050 | 746 | |
| Geekbench Multi | 9300 | 1762 | |
| Display | 6.6" AMOLED | 6.7" IPS LCD | |
| Resolution | 2510x1156 | 1080x2400 | |
| Refresh rate | 120 Hz | 90 Hz | |
| Battery | 7100 mAh | 4000 mAh | |
| Charging | 100W | 30W | |
| Main camera | 50 MP | 64 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 128GB / 256GB | |
| OS | Android 16 | Android 11, MyOS 11 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | no | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 164.8×76.4×7.9 mm | |
| Weight | 206 g | 184 g | |
| Price | $401 | — |
Redmi K90
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
ZTE S30
- Main: 64MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
ZTE S30
- 6.7" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 90 Hz
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
ZTE S30
- 4000 mAh
- Wired: 30W
- No wireless charging
We compared Redmi K90 and ZTE S30, covering their specs and all relevant benchmarks.
Redmi K90 leads ZTE S30 by 500.4% in our overall performance rating.
ZTE S30
Price unknownperformance
In the "performance" category, the Redmi K90 significantly outperforms the ZTE S30 (69/100 vs 0/100).
display
In the "display" category, the Redmi K90 significantly outperforms the ZTE S30 (100/100 vs 50/100).
camera
In the "camera" category, the Redmi K90 is a bit better (53/100 vs 40/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the ZTE S30 (71/100 vs 14/100).
design
In the "design" category, the ZTE S30 notably outperforms the Redmi K90 (70/100 vs 42/100).
value for money
In the "value for money" category, the Redmi K90 notably outperforms the ZTE S30 (82/100 vs 55/100).
Which is better: the Redmi K90 or the ZTE S30?
The Redmi K90 significantly outperforms the ZTE S30 by 44 points (68/100 vs 24/100).
What is the rating of the Redmi K90 and the ZTE S30?
The Redmi K90 has a MobileRank rating of 68/100, the ZTE S30 — 24/100.
Which has the better camera: the Redmi K90 or the ZTE S30?
The Redmi K90 leads on camera score (53/100 vs 40/100).
Which is more powerful: the Redmi K90 or the ZTE S30?
The Redmi K90 leads on performance (69/100 vs 0/100).
Should you choose the Redmi K90 over the ZTE S30?
The Redmi K90 is a better fit for active users, budget-conscious buyers. The ZTE S30 is a better fit for everyday use.