Motorola Moto G42 vs Redmi K90 Ultra
The Motorola Moto G42 (2022) runs on the Qualcomm Snapdragon 680 4G, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 44/100 (a 29-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 5000); the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 424,216); the Motorola Moto G42 is noticeably lighter (175g vs 227g).
Profile comparison
Category scores
Motorola Moto G42
Redmi K90 Ultra
What makes Motorola Moto G42 better?
- Lighter: 175g vs 227g
- Better portability (74/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 424216
- Better Geekbench Single: 3013 vs 412
- Better Geekbench Multi: 9287 vs 1423
- Bigger battery: 8550 vs 5000 mAh
- Faster charging: 100W vs 18W
- Higher performance (92/100 vs 31/100)
- Better camera (37/100 vs 35/100)
- Longer battery life (78/100 vs 43/100)
- Better display (94/100 vs 84/100)
Comparison verdict
Comparing the Motorola Moto G42 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 29 points higher (73/100 vs 44/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 31/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 43/100). In the "performance" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G42 (92/100 vs 31/100). In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100). In the "camera" category, the Redmi K90 Ultra and the Motorola Moto G42 are nearly equal (37/100 vs 35/100). In the "battery" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G42 (78/100 vs 43/100). In the "portability" category, the Motorola Moto G42 significantly outperforms the Redmi K90 Ultra (74/100 vs 40/100).
Specs comparison
| Specification | Motorola Moto G42 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 680 4G | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 424216 | 3233695 | |
| Geekbench Single | 412 | 3013 | |
| Geekbench Multi | 1423 | 9287 | |
| Display | 6.4" AMOLED | 6.8" AMOLED | |
| Resolution | 1080x2400 | 1280x2772 | |
| Refresh rate | — | 165 Hz | |
| Battery | 5000 mAh | 8550 mAh | |
| Charging | 18W | 100W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB | |
| OS | Android 12 | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | yes | yes | |
| Protection | — | IP68/IP69 | |
| Dimensions | 160.4×73.5×8.0 mm | 162.9×77.9×8.2 mm | |
| Weight | 175 g | 227 g | |
| Launch price | — | $420 |
Camera comparison
Motorola Moto G42
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Motorola Moto G42
- 6.4" AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Motorola Moto G42
- 5000 mAh
- Wired: 18W
- No wireless charging
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Motorola Moto G42 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Motorola Moto G42 by 86.9% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Motorola Moto G42
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G42 (92/100 vs 31/100).
display
In the "display" category, the Redmi K90 Ultra is a bit better (94/100 vs 84/100).
camera
In the "camera" category, the Redmi K90 Ultra and the Motorola Moto G42 are nearly equal (37/100 vs 35/100).
battery
In the "battery" category, the Redmi K90 Ultra significantly outperforms the Motorola Moto G42 (78/100 vs 43/100).
portability
In the "portability" category, the Motorola Moto G42 significantly outperforms the Redmi K90 Ultra (74/100 vs 40/100).
Frequently asked questions
Which is better: the Motorola Moto G42 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Motorola Moto G42 by 29 points (73/100 vs 44/100).
What is the rating of the Motorola Moto G42 and the Redmi K90 Ultra?
The Motorola Moto G42 has a MobileRank rating of 44/100, the Redmi K90 Ultra — 73/100.
Which is more powerful: the Motorola Moto G42 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 31/100).
Should you choose the Motorola Moto G42 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.