Redmi K90 Ultra vs Vivo S18e
The Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo S18e (2023) runs on the MediaTek Dimensity 7200. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 53/100 (a 20-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 4800); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 971,424); the Vivo S18e is noticeably lighter (193g vs 227g).
Redmi K90 Ultra
Vivo S18e
- Higher AnTuTu: 3119308 vs 971424
- Better Geekbench Single: 3041 vs 1167
- Better Geekbench Multi: 9494 vs 2577
- Bigger battery: 8550 vs 4800 mAh
- Faster charging: 100W vs 80W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 57/100)
- Better camera (37/100 vs 32/100)
- Longer battery life (78/100 vs 52/100)
- Better display (94/100 vs 79/100)
- Lighter: 193g vs 227g
- Better portability (66/100 vs 40/100)
Comparing the Redmi K90 Ultra vs the Vivo S18e, the Redmi K90 Ultra scores 20 points higher (73/100 vs 53/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 57/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 52/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo S18e (92/100 vs 57/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo S18e (94/100 vs 79/100). In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Vivo S18e (78/100 vs 52/100). In the "portability" category, the Vivo S18e notably outperforms the Redmi K90 Ultra (66/100 vs 40/100).
| Specification | Redmi K90 Ultra | Vivo S18e | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | MediaTek Dimensity 7200 | |
| AnTuTu | 3119308 | 971424 | |
| Geekbench Single | 3041 | 1167 | |
| Geekbench Multi | 9494 | 2577 | |
| Display | 6.8" AMOLED | 6.7" AMOLED | |
| Resolution | 1280x2772 | 1080x2400 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8550 mAh | 4800 mAh | |
| Charging | 100W | 80W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 14, OriginOS 4 | |
| Brightness (peak) | 3500 nits | 1800 nits | |
| NFC | yes | yes | |
| Protection | IP68/IP69 | IP54 | |
| Dimensions | 162.9×77.9×8.2 mm | 162.4×74.9×7.7 mm | |
| Weight | 227 g | 193 g | |
| Launch price | $420 | — |
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Vivo S18e
- Main: 50MP f/f/1.8
- Front: 16MP
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Vivo S18e
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Vivo S18e
- 4800 mAh
- Wired: 80W
- No wireless charging
We compared Redmi K90 Ultra and Vivo S18e, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Vivo S18e by 221.1% in our overall performance rating.
Vivo S18e
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Vivo S18e (92/100 vs 57/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Vivo S18e (94/100 vs 79/100).
camera
In the "camera" category, the Redmi K90 Ultra is a bit better (37/100 vs 32/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Vivo S18e (78/100 vs 52/100).
portability
In the "portability" category, the Vivo S18e notably outperforms the Redmi K90 Ultra (66/100 vs 40/100).
Which is better: the Redmi K90 Ultra or the Vivo S18e?
The Redmi K90 Ultra significantly outperforms the Vivo S18e by 20 points (73/100 vs 53/100).
What is the rating of the Redmi K90 Ultra and the Vivo S18e?
The Redmi K90 Ultra has a MobileRank rating of 73/100, the Vivo S18e — 53/100.
Which has the better camera: the Redmi K90 Ultra or the Vivo S18e?
The Redmi K90 Ultra leads on camera score (37/100 vs 32/100).
Which is more powerful: the Redmi K90 Ultra or the Vivo S18e?
The Redmi K90 Ultra leads on performance (92/100 vs 57/100).
Should you choose the Redmi K90 Ultra over the Vivo S18e?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Vivo S18e is a better fit for everyday use.