Redmi K90 vs Samsung Galaxy A6 2018
The Redmi K90 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Samsung Galaxy A6 2018 (2018) runs on the Samsung Exynos 7870; launch prices were $401 and $400. By overall MobileRank rating, the Redmi K90 leads — 76/100 vs 21/100 (a 55-point difference). Key differences: the Redmi K90 has the bigger battery (7100 mAh vs 3000); the main camera is 50 MP vs 16 MP; the Redmi K90 is faster in AnTuTu (3,077,585 vs 192,269); the Samsung Galaxy A6 2018 is noticeably lighter (162g vs 206g).
Profile comparison
Category scores
Redmi K90
Samsung Galaxy A6 2018
What makes Redmi K90 better?
- Higher AnTuTu: 3077585 vs 192269
- Better Geekbench Single: 3013 vs 172
- Better Geekbench Multi: 9287 vs 492
- Bigger battery: 7100 vs 3000 mAh
- Faster charging: 100W vs 15W
- Better main camera: 50MP vs 16MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (91/100 vs 11/100)
- Better camera (58/100 vs 14/100)
- Longer battery life (72/100 vs 15/100)
- Better display (82/100 vs 48/100)
What makes Samsung Galaxy A6 2018 better?
- Lighter: 162g vs 206g
- Cheaper at launch: $400 vs $401
- Better portability (83/100 vs 55/100)
Comparison verdict
Comparing the Redmi K90 vs the Samsung Galaxy A6 2018, the Redmi K90 scores 55 points higher (76/100 vs 21/100). In the "performance" category, the Redmi K90 leads (91/100 vs 11/100). In the "camera" category, the Redmi K90 leads (58/100 vs 14/100). In the "battery" category, the Redmi K90 leads (72/100 vs 15/100). Value score: Redmi K90 — 80/100, Samsung Galaxy A6 2018 — 0/100; 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 significantly outperforms the Samsung Galaxy A6 2018 (91/100 vs 11/100). In the "display" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (82/100 vs 48/100). In the "camera" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (58/100 vs 14/100). In the "battery" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (72/100 vs 15/100). In the "portability" category, the Samsung Galaxy A6 2018 notably outperforms the Redmi K90 (83/100 vs 55/100).
Specs comparison
| Specification | Redmi K90 | Samsung Galaxy A6 2018 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Samsung Exynos 7870 | |
| AnTuTu | 3077585 | 192269 | |
| Geekbench Single | 3013 | 172 | |
| Geekbench Multi | 9287 | 492 | |
| Display | 6.6" AMOLED | 5.6" Super AMOLED | |
| Resolution | 2510x1156 | 1480x720 | |
| Refresh rate | 120 Hz | 60 Hz | |
| Battery | 7100 mAh | 3000 mAh | |
| Charging | 100W | 15W | |
| Main camera | 50 MP | 16 MP | |
| Ultrawide | 8 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 20 MP | 16 MP | |
| RAM | 12GB / 16GB | 3GB / 4GB | |
| Storage | 256GB / 512GB | 32GB / 64GB | |
| OS | Android 16 | Android 8.0 | |
| Brightness (peak) | 3500 nits | — | |
| NFC | yes | yes | |
| Protection | IP68 | — | |
| Dimensions | 157.5×75.3×8.0 mm | 160.2×75.7×7.9 mm | |
| Weight | 206 g | 162 g | |
| Launch price | $401 | $400 |
Camera comparison
Redmi K90
- Main: 50MP f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 20MP
Samsung Galaxy A6 2018
- Main: 16MP f/1.7
- Front: 16MP
Display comparison
Redmi K90
- 6.6" AMOLED
- Resolution: 2510x1156
- Refresh rate: 120 Hz
Samsung Galaxy A6 2018
- 5.6" Super AMOLED
- Resolution: 1480x720
- Refresh rate: 60 Hz
Battery and charging
Redmi K90
- 7100 mAh
- Wired: 100W
- No wireless charging
Samsung Galaxy A6 2018
- 3000 mAh
- Wired: 15W
- Wireless charging: no data
Overall performance score
We compared Redmi K90 and Samsung Galaxy A6 2018, covering their specs and all relevant benchmarks.
Redmi K90 leads Samsung Galaxy A6 2018 by 1500.7% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $1. Samsung Galaxy A6 2018 was $1 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (91/100 vs 11/100).
display
In the "display" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (82/100 vs 48/100).
camera
In the "camera" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (58/100 vs 14/100).
battery
In the "battery" category, the Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 (72/100 vs 15/100).
portability
In the "portability" category, the Samsung Galaxy A6 2018 notably outperforms the Redmi K90 (83/100 vs 55/100).
Frequently asked questions
Which is better: the Redmi K90 or the Samsung Galaxy A6 2018?
The Redmi K90 significantly outperforms the Samsung Galaxy A6 2018 by 55 points (76/100 vs 21/100).
What is the rating of the Redmi K90 and the Samsung Galaxy A6 2018?
The Redmi K90 has a MobileRank rating of 76/100, the Samsung Galaxy A6 2018 — 21/100.
Which has the better camera: the Redmi K90 or the Samsung Galaxy A6 2018?
The Redmi K90 leads on camera score (58/100 vs 14/100).
Which is more powerful: the Redmi K90 or the Samsung Galaxy A6 2018?
The Redmi K90 leads on performance (91/100 vs 11/100).
Should you choose the Redmi K90 over the Samsung Galaxy A6 2018?
The Redmi K90 is a better fit for gamers and power users, budget-conscious buyers.