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  3. Ace 6 Ultra vs Redmi K90 Max

OnePlus Ace 6 Ultra vs Xiaomi Redmi K90 Max

What Ace 6 Ultra does better (4) and where Redmi K90 Max wins (6) — every spec side by side.

OnePlus Ace 6 Ultra
OnePlus · 2026Ace 6 Ultra
9.6Score
4 advantages≈ $480
vs
Xiaomi Redmi K90 Max
Xiaomi · 2026Redmi K90 Max
9.6Score
6 advantages≈ $480
Higher score
9.6Display9.7
9.6Performance9.6
8.6Camera9.0
9.6Battery9.6
9.3Features9.3
Dimensions

Size comparison

Ace 6 UltraRedmi K90 Max
77.5 × 162.58.577.9 × 162.98.2
Ace 6 UltraRedmi K90 MaxDifference
Height162.5 mm162.9 mm−0.4 mm
Width77.5 mm77.9 mm−0.4 mm
Thickness8.5 mm8.2 mm+0.3 mm
Weight217 g227 g−10 g

Drawn to the same scale from the official dimensions (front and side).

Why is Ace 6 Ultra better than Redmi K90 Max?

  1. Wired charging120 W vs 100 W+20%
  2. Geekbench 6 (multi-core)10,616 vs 10,402+2%
  3. Weight217 g vs 227 g+5%
  4. Bluetooth6 vs 5.4+11%

Why is Redmi K90 Max better than Ace 6 Ultra?

  1. Peak brightness1,800 nits vs 3,500 nits+94%
  2. AnTuTu score3,429,868 vs 3,760,662+10%
  3. Max video4K vs 8K
  4. Selfie camera16 MP vs 20 MP+25%
  5. Main camera aperturef/1.8 vs f/1.7+6%
  6. Thickness8.5 mm vs 8.2 mm+4%
Specifications

Side by side

Design
Weight217 g227 g
Thickness8.5 mm8.2 mm
Height162.5 mm162.9 mm
Width77.5 mm77.9 mm
FrameAluminiumAluminium
BackGlassSilicone polymer
Ingress protectionIP68IP68
Water resistance (IPx)IPx8IPx8
Glass protectionCrystal Shield GlassDragon Crystal Glass
ColoursGray, GoldSilver, Blue, Black
Display
Screen size6.8″6.8″
PanelAMOLEDAMOLED
OLED panelYesYes
Resolution (width)1,272 px1,280 px
Resolution (height)2,772 px2,772 px
Pixel density450 ppi447 ppi
Refresh rate165 Hz165 Hz
Peak brightness1,800 nits3,500 nits
Screen-to-body ratio89.3%90.3%
HDRYesYes
Performance
ChipsetMediatek Dimensity 9500MediaTek Dimensity 9500
Chip makerMediaTekMediaTek
Process3 nm3 nm
CPU cores88
CPU frequency4.21 GHz4.21 GHz
GPUMali-G1 Ultra MC12Mali-G1 Ultra MC12
AnTuTu score3,429,8683,760,662
Geekbench 6 (multi-core)10,61610,402
Memory
RAM16 GB16 GB
Storage (max)1,024 GB1,024 GB
Storage (base)256 GB256 GB
Storage typeUFS 4.1UFS 4.1
Memory card slotNoNo
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8f/1.7
Main sensor size1/1.55"1/1.55"
Rear cameras22
Optical stabilisationYesYes
Ultra-wide cameraYesYes
Telephoto cameraNoNo
Max video4K8K
4K video frame rate60 fps60 fps
Selfie camera16 MP20 MP
4K selfie videoNoNo
Battery
Battery capacity8,600 mAh8,550 mAh
Battery typeSi/CSi/C
Wired charging120 W100 W
Charged in 30 min72%—
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 7Wi-Fi 7
Bluetooth65.4
NFCYesYes
USBUSB Type-C 2.0USB Type-C
USB version22
Infrared portYesYes
Dual-band GPSYesYes
Satellite navigationGLONASS, GALILEO, BDS, QZSS, NavICGLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakersYesYes
3.5 mm headphone jackNoNo
Fingerprint sensorUnder display, ultrasonicUnder display, ultrasonic
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass
Software
OS at launchAndroid 16Android 16
PlatformAndroidAndroid
InterfaceColorOS 16HyperOS 3
To compare: 0up to 4 models
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