android.gs
Compare
Galaxy S21 Ultra 5G vs Mi 10i 5G

Samsung Galaxy S21 Ultra 5G vs Xiaomi Mi 10i 5G

What Galaxy S21 Ultra 5G does better (23) and where Mi 10i 5G wins (4) — every spec side by side.

Samsung · 2021Galaxy S21 Ultra 5G

9.0Score

23 advantages≈ $260

Higher score

Xiaomi · 2021Mi 10i 5G

7.0Score

4 advantages≈ $270

9.1Display5.5

9.8Camera7.3

6.2Battery4.8

9.4Features7.4

Dimensions

Size comparison

Galaxy S21 Ultra 5GMi 10i 5G

	Galaxy S21 Ultra 5G	Mi 10i 5G	Difference
Height	165.1 mm	165.4 mm	−0.3 mm
Width	75.6 mm	76.8 mm	−1.2 mm
Thickness	8.9 mm	9 mm	−0.1 mm
Weight	227 g	214 g	+12 g

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

Why is Galaxy S21 Ultra 5G better than Mi 10i 5G?

RAM16 GB vs 8 GB2×
Peak brightness1,500 nits vs 450 nits3.3×
Storage (max)512 GB vs 128 GB4×
OLED panelYes · Mi 10i 5G: No
Optical stabilisationYes · Mi 10i 5G: No
Telephoto cameraYes · Mi 10i 5G: No
Wireless chargingYes · Mi 10i 5G: No
Battery capacity5,000 mAh vs 4,820 mAh+4%
Selfie camera40 MP vs 16 MP2.5×
CPU frequency2.9 GHz vs 2.2 GHz+32%
Pixel density515 ppi vs 395 ppi+30%
Storage (base)128 GB vs 64 GB2×

Why is Mi 10i 5G better than Galaxy S21 Ultra 5G?

Wired charging25 W vs 33 W+32%
Memory card slotNo · Galaxy S21 Ultra 5G: Yes
3.5 mm headphone jackNo · Galaxy S21 Ultra 5G: Yes
Weight227 g vs 214 g+6%

Specifications

Side by side

Only differences	Samsung Galaxy S21 Ultra 5G≈ $2609.0	Xiaomi Mi 10i 5G≈ $2707.0
Design
Weight	227 g	214 g
Thickness	8.9 mm	9 mm
Height	165.1 mm	165.4 mm
Width	75.6 mm	76.8 mm
Frame	Aluminium	—
Back	Glass	Glass
Ingress protection	IP68	—
Water resistance (IPx)	IPx8	—
Glass protection	Corning Gorilla Glass Victus	Corning Gorilla Glass 5
Colours	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy	Pacific Sunrise, Midnight Black, Atlantic Blue
Stylus	Yes	—
Display
Screen size	6.8″	6.7″
Panel	Dynamic AMOLED 2X	IPS LCD
OLED panel	Yes	No
Resolution (width)	1,440 px	1,080 px
Resolution (height)	3,200 px	2,400 px
Pixel density	515 ppi	395 ppi
Refresh rate	120 Hz	120 Hz
Peak brightness	1,500 nits	450 nits
Measured brightness	1,023 nits	—
Screen-to-body ratio	89.8%	84.6%
HDR	Yes	Yes
Performance
Chipset	Exynos 2100 - International	Qualcomm SM7225 Snapdragon 750G 5G
Chip maker	Qualcomm	Qualcomm
Process	5 nm	8 nm
CPU cores	8	8
CPU frequency	2.9 GHz	2.2 GHz
GPU	Mali-G78 MP14 - International Adreno 660 - USA/China	Adreno 619
AnTuTu score	657,150	—
Geekbench 6 (multi-core)	3,518	—
Memory
RAM	16 GB	8 GB
Storage (max)	512 GB	128 GB
Storage (base)	128 GB	64 GB
Storage type	UFS 3.1	UFS 2.2
Memory card slot	No	Yes
Camera
Main camera	108 MP	108 MP
Main camera aperture	f/1.8	f/1.8
Main sensor size	1/1.33"	1/1.52"
Rear cameras	4	2
Optical stabilisation	Yes	No
Ultra-wide camera	Yes	Yes
Telephoto camera	Yes	No
Optical zoom	10×	—
Max video	8K	4K
4K video frame rate	60 fps	30 fps
Selfie camera	40 MP	16 MP
4K selfie video	Yes	No
Battery
Battery capacity	5,000 mAh	4,820 mAh
Battery type	Li-Ion	Li-Po
Wired charging	25 W	33 W
Charged in 30 min	54%	52%
Wireless charging	Yes	No
Wireless charging power	15 W	—
Reverse wireless charging	Yes	—
Connectivity
5G	Yes	Yes
eSIM	Yes	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 6E	Wi-Fi 4
Bluetooth	5.2	—
NFC	Yes	Yes
USB	USB Type-C 3.2	USB Type-C 2.0
USB version	3.2	2
Ultra Wideband	Yes	—
Dual-band GPS	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS, NavIC
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	No	Yes
Loudspeaker loudness	-25.5 LUFS	—
Fingerprint sensor	Under display, ultrasonic	Side
Barometer	Yes	—
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
SAR (head)	0.71 W/kg	0.87 W/kg
Software
OS at launch	Android 11	Android 10
Platform	Android	Android
Interface	One UI 7	MIUI 12
Major OS updates promised	4	—