Motorola Moto G100S vs Redmi K90 Ultra
The Motorola Moto G100S (2025) runs on the Qualcomm Snapdragon 6s Gen 4, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 75/100 vs 50/100 (a 25-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 7000); the Redmi K90 Ultra is faster in AnTuTu (3,119,308 vs 809,091); the Motorola Moto G100S is noticeably lighter (210g vs 227g).
Motorola Moto G100S
Redmi K90 Ultra
- Lighter: 210g vs 227g
- Better portability (47/100 vs 40/100)
- Higher AnTuTu: 3119308 vs 809091
- Better Geekbench Single: 3041 vs 1009
- Better Geekbench Multi: 9494 vs 2892
- Bigger battery: 8550 vs 7000 mAh
- Faster charging: 100W vs 30W
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 54/100)
- Better camera (37/100 vs 33/100)
- Longer battery life (92/100 vs 57/100)
- Better display (94/100 vs 66/100)
Comparing the Motorola Moto G100S vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 25 points higher (75/100 vs 50/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 54/100). In the "battery" category, the Redmi K90 Ultra leads (92/100 vs 57/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G100S (92/100 vs 54/100). In the "display" category, the Redmi K90 Ultra notably outperforms the Motorola Moto G100S (94/100 vs 66/100). In the "camera" category, the Redmi K90 Ultra and the Motorola Moto G100S are nearly equal (37/100 vs 33/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G100S (92/100 vs 57/100). In the "portability" category, the Motorola Moto G100S is a bit better (47/100 vs 40/100).
| Specification | Motorola Moto G100S | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6s Gen 4 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 809091 | 3119308 | |
| Geekbench Single | 1009 | 3041 | |
| Geekbench Multi | 2892 | 9494 | |
| Display | 6.7" IPS LCD | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 7000 mAh | 8550 mAh | |
| Charging | 30W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 8GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 1050 nits | 3500 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68/IP69 | |
| Dimensions | 166.2×76.5×8.6 mm | 162.9×77.9×8.2 mm | |
| Weight | 210 g | 227 g | |
| Price | — | $420 |
Motorola Moto G100S
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Motorola Moto G100S
- 6.7" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Motorola Moto G100S
- 7000 mAh
- Wired: 30W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- Wireless charging: no data
We compared Motorola Moto G100S and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Motorola Moto G100S by 74.1% in our overall performance rating.
Motorola Moto G100S
Price unknownperformance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G100S (92/100 vs 54/100).
display
In the "display" category, the Redmi K90 Ultra notably outperforms the Motorola Moto G100S (94/100 vs 66/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Motorola Moto G100S are nearly equal (37/100 vs 33/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G100S (92/100 vs 57/100).
portability
In the "portability" category, the Motorola Moto G100S is a bit better (47/100 vs 40/100).
Which is better: the Motorola Moto G100S or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Motorola Moto G100S by 25 points (75/100 vs 50/100).
What is the rating of the Motorola Moto G100S and the Redmi K90 Ultra?
The Motorola Moto G100S has a MobileRank rating of 50/100, the Redmi K90 Ultra — 75/100.
Which is more powerful: the Motorola Moto G100S or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 54/100).
Should you choose the Motorola Moto G100S over the Redmi K90 Ultra?
The Motorola Moto G100S is a better fit for everyday use. The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.