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Redmi K80 Ultra vs Redmi K90 Ultra

Xiaomi Redmi K80 Ultra vs Xiaomi Redmi K90 Ultra

What Redmi K80 Ultra does better (2) and where Redmi K90 Ultra wins (7) — every spec side by side.

Xiaomi · 2025Redmi K80 Ultra

9.6Score

2 advantages≈ $330

Xiaomi · 2026Redmi K90 Ultra

9.6Score

7 advantages≈ $420

Higher score

9.7Display9.8

9.3Performance9.6

9.0Camera9.0

9.5Battery9.6

9.3Features9.3

Dimensions

Size comparison

Redmi K80 UltraRedmi K90 Ultra

	Redmi K80 Ultra	Redmi K90 Ultra	Difference
Height	163.1 mm	162.9 mm	+0.2 mm
Width	77.9 mm	77.9 mm	=
Thickness	8.2 mm	8.2 mm	=
Weight	219 g	227 g	−8 g

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

Why is Redmi K80 Ultra better than Redmi K90 Ultra?

Storage (max)1,024 GB vs 512 GB2×
Weight219 g vs 227 g+4%

Why is Redmi K90 Ultra better than Redmi K80 Ultra?

Peak brightness3,200 nits vs 9,500 nits3×
Battery capacity7,410 mAh vs 8,550 mAh+15%
AnTuTu score2,926,668 vs 3,233,695+10%
Refresh rate144 Hz vs 165 Hz+15%
Geekbench 6 (multi-core)9,174 vs 10,224+11%
CPU frequency3.63 GHz vs 4.32 GHz+19%
Main camera aperturef/1.9 vs f/1.7+12%

Specifications

Side by side

Only differences	Xiaomi Redmi K80 Ultra≈ $3309.6	Xiaomi Redmi K90 Ultra≈ $4209.6
Design
Weight	219 g	227 g
Thickness	8.2 mm	8.2 mm
Height	163.1 mm	162.9 mm
Width	77.9 mm	77.9 mm
Frame	Aluminium	Aluminium
Back	Glass	—
Ingress protection	IP68	IP68
Water resistance (IPx)	IPx8	IPx8
Glass protection	Scratch/drop-resistant glass	—
Colours	Gray, White, Blue, Green	Black, Blue, Silver
Display
Screen size	6.8″	6.8″
Panel	OLED	AMOLED
OLED panel	Yes	Yes
Resolution (width)	1,280 px	1,280 px
Resolution (height)	2,772 px	2,772 px
Pixel density	447 ppi	447 ppi
Refresh rate	144 Hz	165 Hz
Peak brightness	3,200 nits	9,500 nits
Screen-to-body ratio	90.2%	90.3%
HDR	Yes	Yes
Performance
Chipset	Mediatek Dimensity 9400+	Qualcomm SM8750-AB Snapdragon 8 Elite
Chip maker	MediaTek	Qualcomm
Process	3 nm	3 nm
CPU cores	8	8
CPU frequency	3.63 GHz	4.32 GHz
GPU	Immortalis-G925	Adreno 830
AnTuTu score	2,926,668	3,233,695
Geekbench 6 (multi-core)	9,174	10,224
Memory
RAM	16 GB	16 GB
Storage (max)	1,024 GB	512 GB
Storage (base)	256 GB	256 GB
Storage type	UFS 4.1	UFS 4.1
Memory card slot	No	No
Camera
Main camera	50 MP	50 MP
Main camera aperture	f/1.9	f/1.7
Main sensor size	1/1.55"	1/1.55"
Rear cameras	2	2
Optical stabilisation	Yes	Yes
Ultra-wide camera	Yes	Yes
Telephoto camera	No	No
Max video	8K	8K
4K video frame rate	60 fps	60 fps
Selfie camera	20 MP	20 MP
4K selfie video	No	No
Battery
Battery capacity	7,410 mAh	8,550 mAh
Battery type	Si/C	Si/C
Wired charging	100 W	100 W
Wireless charging	No	No
Connectivity
5G	Yes	Yes
eSIM	No	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 7	Wi-Fi 7
Bluetooth	5.4	5.4
NFC	Yes	Yes
USB	USB Type-C	USB Type-C
USB version	—	2
Infrared port	Yes	Yes
Dual-band GPS	Yes	Yes
Satellite navigation	GLONASS, GALILEO, BDS, QZSS, NavIC	GLONASS, GALILEO, BDS, QZSS, NavIC
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	No	No
Fingerprint sensor	Under display, ultrasonic	Under display
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass	Fingerprint (under display, optical), accelerometer, proximity, gyro, compass
Software
OS at launch	Android 15	Android 16
Platform	Android	Android
Interface	HyperOS 2	HyperOS 3