REDMI K90 Ultra vs Samsung Galaxy A18 4G
64.4Performance20
78.7Display46
43.4Camera41.9
83.2Battery43.7
86.7Features49.3
11 spec wins — REDMI K90 Ultra2 spec wins — Samsung Galaxy A18 4G
InnoReviews verdict
REDMI K90 Ultra wins this phone face-off, 69.1 to 37.3, pulling ahead mainly in performance (+44) and battery (+40). Samsung Galaxy A18 4G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the REDMI K90 Ultra
- Stronger performance score: 64 vs 20
- Stronger display score: 79 vs 46
- Stronger battery score: 83 vs 44
- Stronger features score: 87 vs 49
- 300% higher RAM (max): 16 GB vs 4 GB
Reasons to pick the Samsung Galaxy A18 4G
- 14% lower weight: 196 g vs 227 g
Display
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| Screen size | 6.83 ″+2% | 6.7 ″ |
| Panel type | AMOLED | Super AMOLED |
| Resolution | 1280x2772 | 1080x2340 |
| Pixel density | 447 ppi+16% | 385 ppi |
| Refresh rate | 165 Hz+83% | 90 Hz |
| Peak brightness | 3,500 nits | — |
| Screen-to-body | 90.3 %+5% | 86 % |
Performance
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| Chipset | Snapdragon 8 Elite | Exynos 1610 |
| RAM (max) | 16 GB+300% | 4 GB |
| Storage options | 256/512GB | 64/128/256GB |
| Storage type | UFS 4.1 | — |
Camera
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.7 | f/1.8 |
| Ultra-wide | 8 MP+60% | 5 MP |
| Max video | 8K@30fps | 1080p@30fps |
| Front camera | 20 MP+54% | 13 MP |
| OIS | Yes | Yes |
Battery
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| Capacity | 8,550 mAh+71% | 5,000 mAh |
| Wired charging | 100 W+300% | 25 W |
Design
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| Weight | 227 g | 196 g+14% |
| Thickness | 8.2 mm | 7.7 mm+6% |
| IP rating | IP68/IP69 | IP64 |
| Frame material | Aluminum | Plastic |
Connectivity
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| 5G | Yes | No |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 5 |
| Bluetooth | 5.4 | 5.3 |
| NFC | Yes | Yes |
| USB | USB-C | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| OS at launch | Android 16 (HyperOS 3) | Android 17 (One UI 9) |
| OS update pledge | — | 6 years |
Audio
| Spec | REDMI K90 Ultra | Samsung Galaxy A18 4G |
|---|---|---|
| Stereo speakers | Yes | No |
| 3.5mm jack | No | No |