Realme X3 vs Redmi K90
The Realme X3 (2020) runs on the Qualcomm Snapdragon 855+, while the Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 50/100 (a 26-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 4200); the main camera is 64 MP vs 50 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 859,084); the Redmi K90 has NFC for contactless payments, the Realme X3 doesn't.
Profile comparison
Category scores
Realme X3
Redmi K90
What makes Realme X3 better?
- Better main camera: 64MP vs 50MP
- Lighter: 202g vs 206g
- Overall rating 50/100
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 859084
- Better Geekbench Single: 3013 vs 1031
- Better Geekbench Multi: 9287 vs 2864
- Bigger battery: 7100 vs 4200 mAh
- Faster charging: 100W vs 30W
- Higher performance (91/100 vs 55/100)
- Better camera (58/100 vs 48/100)
- Longer battery life (72/100 vs 28/100)
- Better display (82/100 vs 70/100)
- Better portability (55/100 vs 48/100)
Comparison verdict
Comparing the Realme X3 vs the Redmi K90, the Redmi K90 scores 26 points higher (76/100 vs 50/100). In the "performance" category, the Redmi K90 leads (91/100 vs 55/100). In the "camera" category, the Redmi K90 leads (58/100 vs 48/100). In the "battery" category, the Redmi K90 leads (72/100 vs 28/100). In the "performance" category, the Redmi K90 significantly outperforms the Realme X3 (91/100 vs 55/100). In the "display" category, the Redmi K90 is a bit better (82/100 vs 70/100). In the "camera" category, the Redmi K90 is a bit better (58/100 vs 48/100). In the "battery" category, the Redmi K90 significantly outperforms the Realme X3 (72/100 vs 28/100). In the "portability" category, the Redmi K90 is a bit better (55/100 vs 48/100).
Specs comparison
| Specification | Realme X3 | Redmi K90 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855+ | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 859084 | 3077585 | |
| Geekbench Single | 1031 | 3013 | |
| Geekbench Multi | 2864 | 9287 | |
| Display | 6.0" IPS LCD | 6.6" AMOLED | |
| Resolution | 1080x2400 | 2510x1156 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 4200 mAh | 7100 mAh | |
| Charging | 30W | 100W | |
| Main camera | 64 MP | 50 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Telephoto | 12 MP | 50 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 6GB / 8GB | 12GB / 16GB | |
| Storage | 128GB | 256GB / 512GB | |
| OS | Android 10, Realme UI | Android 16 | |
| Brightness (peak) | — | 3500 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | 163.8×75.8×8.9 mm | 157.5×75.3×8.0 mm | |
| Weight | 202 g | 206 g | |
| Launch price | — | $401 |
Camera comparison
Realme X3
- Main: 64MP f/1.8
- Ultrawide: 8MP
- Telephoto: 12MP
- Front: 16MP
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Display comparison
Realme X3
- 6.0" IPS LCD
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Battery and charging
Realme X3
- 4200 mAh
- Wired: 30W
- No wireless charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Realme X3 and Redmi K90, covering their specs and all relevant benchmarks.
Redmi K90 leads Realme X3 by 72.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Realme X3
Price unknownDetailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Realme X3 (91/100 vs 55/100).
display
In the "display" category, the Redmi K90 is a bit better (82/100 vs 70/100).
camera
In the "camera" category, the Redmi K90 is a bit better (58/100 vs 48/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Realme X3 (72/100 vs 28/100).
portability
In the "portability" category, the Redmi K90 is a bit better (55/100 vs 48/100).
Frequently asked questions
Which is better: the Realme X3 or the Redmi K90?
The Redmi K90 significantly outperforms the Realme X3 by 26 points (76/100 vs 50/100).
What is the rating of the Realme X3 and the Redmi K90?
The Realme X3 has a MobileRank rating of 50/100, the Redmi K90 — 76/100.
Which has the better camera: the Realme X3 or the Redmi K90?
The Redmi K90 leads on camera score (58/100 vs 48/100).
Which is more powerful: the Realme X3 or the Redmi K90?
The Redmi K90 leads on performance (91/100 vs 55/100).
Should you choose the Realme X3 over the Redmi K90?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.