Realme C73 vs Redmi K90 Ultra
The Realme C73 (2025) runs on the MediaTek Dimensity 6300, while the Redmi K90 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $120 and $420. By overall MobileRank rating, the Redmi K90 Ultra leads — 73/100 vs 42/100 (a 31-point difference). Key differences: the Redmi K90 Ultra has the bigger battery (8550 mAh vs 6000); the main camera is 32 MP vs 50 MP; the Redmi K90 Ultra is faster in AnTuTu (3,233,695 vs 528,398); the Redmi K90 Ultra has NFC for contactless payments, the Realme C73 doesn't; the Realme C73 is noticeably lighter (197g vs 227g).
Profile comparison
Category scores
Realme C73
Redmi K90 Ultra
What makes Realme C73 better?
- Lighter: 197g vs 227g
- Cheaper at launch: $120 vs $420
- Better portability (62/100 vs 40/100)
What makes Redmi K90 Ultra better?
- Higher AnTuTu: 3233695 vs 528398
- Better Geekbench Single: 3013 vs 771
- Better Geekbench Multi: 9287 vs 1980
- Bigger battery: 8550 vs 6000 mAh
- Faster charging: 100W vs 15W
- Better main camera: 50MP vs 32MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (92/100 vs 43/100)
- Better camera (37/100 vs 20/100)
- Longer battery life (78/100 vs 60/100)
- Better display (94/100 vs 55/100)
Comparison verdict
Comparing the Realme C73 vs the Redmi K90 Ultra, the Redmi K90 Ultra scores 31 points higher (73/100 vs 42/100). In the "performance" category, the Redmi K90 Ultra leads (92/100 vs 43/100). In the "camera" category, the Redmi K90 Ultra leads (37/100 vs 20/100). In the "battery" category, the Redmi K90 Ultra leads (78/100 vs 60/100). Value score: Realme C73 — 66/100, Redmi K90 Ultra — 72/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme C73 (92/100 vs 43/100). In the "display" category, the Redmi K90 Ultra significantly outperforms the Realme C73 (94/100 vs 55/100). In the "camera" category, the Redmi K90 Ultra notably outperforms the Realme C73 (37/100 vs 20/100). In the "battery" category, the Redmi K90 Ultra notably outperforms the Realme C73 (78/100 vs 60/100). In the "portability" category, the Realme C73 notably outperforms the Redmi K90 Ultra (62/100 vs 40/100).
Specs comparison
| Specification | Realme C73 | Redmi K90 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6300 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 528398 | 3233695 | |
| Geekbench Single | 771 | 3013 | |
| Geekbench Multi | 1980 | 9287 | |
| Display | 6.7" IPS LCD | 6.8" AMOLED | |
| Resolution | 720x1604 | 1280x2772 | |
| Refresh rate | 120 Hz | 165 Hz | |
| Battery | 6000 mAh | 8550 mAh | |
| Charging | 15W | 100W | |
| Main camera | 32 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 8 MP | 20 MP | |
| RAM | 4GB | 12GB / 16GB | |
| Storage | 64GB / 128GB | 256GB / 512GB | |
| OS | Android 15 | Android 16 | |
| Brightness (peak) | 625 nits | 3500 nits | |
| NFC | no | yes | |
| Protection | IP64 | IP68/IP69 | |
| Dimensions | 165.7×76.2×7.9 mm | 162.9×77.9×8.2 mm | |
| Weight | 197 g | 227 g | |
| Launch price | $120 | $420 |
Camera comparison
Realme C73
- Main: 32MP f/1.8
- Front: 8MP
Redmi K90 Ultra
- Main: 50MP f/1.7
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Realme C73
- 6.7" IPS LCD
- Resolution: 720x1604
- Refresh rate: 120 Hz
Redmi K90 Ultra
- 6.8" AMOLED
- Resolution: 1280x2772
- Refresh rate: 165 Hz
Battery and charging
Realme C73
- 6000 mAh
- Wired: 15W
- Wireless charging: no data
Redmi K90 Ultra
- 8550 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared Realme C73 and Redmi K90 Ultra, covering their specs and all relevant benchmarks.
Redmi K90 Ultra leads Realme C73 by 83.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $300. Realme C73 was $300 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 Ultra significantly outperforms the Realme C73 (92/100 vs 43/100).
display
In the "display" category, the Redmi K90 Ultra significantly outperforms the Realme C73 (94/100 vs 55/100).
camera
In the "camera" category, the Redmi K90 Ultra notably outperforms the Realme C73 (37/100 vs 20/100).
battery
In the "battery" category, the Redmi K90 Ultra notably outperforms the Realme C73 (78/100 vs 60/100).
portability
In the "portability" category, the Realme C73 notably outperforms the Redmi K90 Ultra (62/100 vs 40/100).
Frequently asked questions
Which is better: the Realme C73 or the Redmi K90 Ultra?
The Redmi K90 Ultra significantly outperforms the Realme C73 by 31 points (73/100 vs 42/100).
What is the rating of the Realme C73 and the Redmi K90 Ultra?
The Realme C73 has a MobileRank rating of 42/100, the Redmi K90 Ultra — 73/100.
Which has the better camera: the Realme C73 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on camera score (37/100 vs 20/100).
Which is more powerful: the Realme C73 or the Redmi K90 Ultra?
The Redmi K90 Ultra leads on performance (92/100 vs 43/100).
Should you choose the Realme C73 over the Redmi K90 Ultra?
The Redmi K90 Ultra is a better fit for gamers and power users, those who care about battery life.