OnePlus Ace 7 vs REDMI K90 Max
The OnePlus Ace 7 scores 8.1 in our rating, and the REDMI K90 Max scores 8.0. The OnePlus Ace 7 leads in software support, while the REDMI K90 Max is ahead in display. The OnePlus Ace 7 is the newer phone, announced Oct 29, 2026.
Key differences
Why choose the OnePlus Ace 7
- Bigger battery 9,000 mAh vs 8,550 mAh
- Silicon-carbon battery
- Higher refresh rate 185 Hz vs 165 Hz
- Better water resistance IP68 + IP69K vs IP68 + IP69
- Newer model Oct 29, 2026 vs Apr 21, 2026
- Lighter 217 g vs 227 g
Why choose the REDMI K90 Max
- Bigger screen 6.83 inches vs 6.78 inches
- Brighter screen 3,500 nits vs 2,000 nits
- More storage 256 GB / 512 GB / 1 TB vs 256 GB / 512 GB
- Thinner 8.18 mm vs 8.5 mm
- Higher screen resolution 1280 × 2772 px vs 1272 × 2772 px
- Better selfie video 1080p@60 vs 1080p@30
PhoneRanked scores
Calculated from specs, relative to phones from the same year and price range. How we rate phones
Value for money marked “est.” is an estimate: that phone has no official US launch price, so it is not highlighted against the others.
Spec
OnePlus Ace 7REDMI K90 Max
Overall
8.1
8.0
Display
8.3
8.7
Performance
8.8
8.9
Camera
6.5
6.6
Battery
7.7
7.6
Design
8.8
8.8
Software support
5.7
3.5
Value for money
5.0 est.
5.0 est.
Display
Spec
OnePlus Ace 7REDMI K90 Max
Size
6.78 inches
6.83 inches
Type
OLED, BOE flexible OLED
OLED
Resolution
1272 × 2772 px
1280 × 2772 px
Pixel density
450 ppi
447 ppi
Refresh rate
185 Hz
165 Hz
Adaptive refresh
✓ Yes
—
Peak brightness
2,000 nits
3,500 nits
HDR
—
HDR10+, Dolby Vision, HDR Vivid
Protection
OPPO Crystal Shield Glass
—
Performance
Spec
OnePlus Ace 7REDMI K90 Max
Process
3 nm
3 nm
Max CPU clock
4.61 GHz
4.21 GHz
GPU
Adreno 840
Arm Mali-G1 Ultra MC12
RAM
12 GB / 16 GB
12 GB / 16 GB
Storage
256 GB / 512 GB
256 GB / 512 GB / 1 TB
Storage type
UFS 4.1
UFS 4.1
microSD slot
✕ No
✕ No
Cameras
Spec
OnePlus Ace 7REDMI K90 Max
Main camera
200 MP, f/1.8, 1/1.56"
50 MP, f/1.68, 1/1.55"
Optical stabilization
✓ Yes
✓ Yes
Ultrawide
8 MP
8 MP
Rear cameras
2
2
Rear video
8K@30
8K@30
Front camera
16 MP
20 MP
Front video
1080p@30
1080p@60
Battery and charging
Spec
OnePlus Ace 7REDMI K90 Max
Capacity
9,000 mAh
8,550 mAh
Battery type
Silicon-carbon
Li-Po
Wired charging
100 W
100 W
Reverse wireless
✕ No
✕ No
Charger in box
✓ Yes
✓ Yes
Design and build
Spec
OnePlus Ace 7REDMI K90 Max
Dimensions
162.3 × 77.37 × 8.5 mm
162.91 × 77.93 × 8.18 mm
Thickness
8.5 mm
8.18 mm
Weight
217 g
227 g
Form factor
Bar
Bar
Frame
Aluminum
Aluminum
Back
Glass
—
Water resistance
IP68 + IP69K
IP68 + IP69
Fingerprint
Under-display ultrasonic
Under-display ultrasonic
3D face unlock
✕ No
✕ No
SIM
Dual Nano-SIM
Dual Nano-SIM
Colors
Quenching, Polar Night Black, Flowing Light White
Shadow Black, Sky Blue, Space Silver
Connectivity and features
Spec
OnePlus Ace 7REDMI K90 Max
5G
✓ Yes
✓ Yes
Wi-Fi
Wi-Fi 7
Wi-Fi 7
Bluetooth
5.4
5.4
USB
USB-C 2.0
—
NFC
✓ Yes
✓ Yes
3.5 mm jack
✕ No
✕ No
Stereo speakers
✓ Yes
✓ Yes
Satellite
✕ No
✕ No
IR blaster
✓ Yes
✓ Yes
Software
Spec
OnePlus Ace 7REDMI K90 Max
OS at launch
Android 17
Android 16
Interface
ColorOS 17
Xiaomi HyperOS 3
OS updates
3 years
—
Security updates
4 years
—
Launch and price
Spec
OnePlus Ace 7REDMI K90 Max
Announced
Oct 29, 2026
Apr 21, 2026
Released
Oct 29, 2026
Apr 21, 2026
Status
Released
Released
Green marks the stronger value in a row. Specs come from official manufacturer data, cross-checked with established tech media; each phone page lists its sources. Report an error
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