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Galaxy S20 Ultra vs Mix 4

Samsung Galaxy S20 Ultra vs Xiaomi Mix 4

What Galaxy S20 Ultra does better (15) and where Mix 4 wins (8) — every spec side by side.

Samsung · 2020Galaxy S20 Ultra

9.2Score

15 advantages≈ $750

Higher score

Xiaomi · 2021Mix 4

8.8Score

8 advantages≈ $710

9.2Display7.4

9.8Camera9.8

7.1Battery7.7

9.5Features6.9

Dimensions

Size comparison

Galaxy S20 UltraMix 4

	Galaxy S20 Ultra	Mix 4	Difference
Height	166.9 mm	162.6 mm	+4.3 mm
Width	76 mm	75.4 mm	+0.6 mm
Thickness	8.8 mm	8 mm	+0.8 mm
Weight	220 g	225 g	−5 g

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

Why is Galaxy S20 Ultra better than Mix 4?

Water resistance (IPx)IPx8 vs IPx32.7×
Battery capacity5,000 mAh vs 4,500 mAh+11%
RAM16 GB vs 12 GB+33%
Peak brightness1,400 nits vs 800 nits+75%
Pixel density511 ppi vs 395 ppi+29%
Memory card slotYes · Mix 4: No
Selfie camera40 MP vs 20 MP2×
4K selfie videoYes · Mix 4: No
eSIMYes · Mix 4: No
Screen size6.9″ vs 6.7″+3%
Weight220 g vs 225 g+2%
USB version3.2 vs 2+60%

Why is Mix 4 better than Galaxy S20 Ultra?

Wired charging45 W vs 120 W2.7×
Wireless charging power15 W vs 50 W3.3×
Optical zoom4× vs 5×+25%
CPU frequency2.84 GHz vs 2.99 GHz+5%
Process7 nm vs 5 nm+40%
Thickness8.8 mm vs 8 mm+10%
Wi-Fi standardWi-Fi 6 vs Wi-Fi 6E+8%
Bluetooth5 vs 5.2+4%

Specifications

Side by side

Only differences	Samsung Galaxy S20 Ultra≈ $7509.2	Xiaomi Mix 4≈ $7108.8
Design
Weight	220 g	225 g
Thickness	8.8 mm	8 mm
Height	166.9 mm	162.6 mm
Width	76 mm	75.4 mm
Frame	Aluminium	Aluminium
Back	Glass	Ceramic
Ingress protection	IP68	IP53
Water resistance (IPx)	IPx8	IPx3
Glass protection	Corning Gorilla Glass 6	Corning Gorilla Glass Victus
Colours	Cosmic Grey, Cosmic Black, Cloud White	Ceramic Black, Ceramic White, Shadow Gray
Display
Screen size	6.9″	6.7″
Panel	Dynamic AMOLED 2X	AMOLED
OLED panel	Yes	Yes
Resolution (width)	1,440 px	1,080 px
Resolution (height)	3,200 px	2,400 px
Pixel density	511 ppi	395 ppi
Refresh rate	120 Hz	120 Hz
Peak brightness	1,400 nits	800 nits
Measured brightness	887 nits	—
Screen-to-body ratio	89.9%	87.6%
HDR	Yes	Yes
Performance
Chipset	Exynos 990	Qualcomm SM8350 Snapdragon 888+ 5G
Chip maker	Qualcomm	Qualcomm
Process	7 nm	5 nm
CPU cores	8	8
CPU frequency	2.84 GHz	2.99 GHz
GPU	Mali-G77 MP11 Adreno 650	Adreno 660
AnTuTu score	901,346	—
Geekbench 6 (multi-core)	3,232	—
3DMark Wild Life Extreme	1,417	—
Memory
RAM	16 GB	12 GB
Storage (max)	512 GB	512 GB
Storage (base)	128 GB	128 GB
Storage type	UFS 3.0	UFS 3.1
Memory card slot	Yes	No
Camera
Main camera	108 MP	108 MP
Main camera aperture	f/1.8	f/1.9
Main sensor size	1/1.33"	1/1.33"
Rear cameras	3	3
Optical stabilisation	Yes	Yes
Ultra-wide camera	Yes	Yes
Telephoto camera	Yes	Yes
Optical zoom	4×	5×
Max video	8K	8K
4K video frame rate	60 fps	60 fps
Selfie camera	40 MP	20 MP
4K selfie video	Yes	No
Battery
Battery capacity	5,000 mAh	4,500 mAh
Battery type	Li-Ion	Li-Po
Wired charging	45 W	120 W
Charged in 30 min	—	200%
Wireless charging	Yes	Yes
Wireless charging power	15 W	50 W
Reverse wireless charging	Yes	—
Connectivity
5G	Yes	Yes
eSIM	Yes	No
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 6	Wi-Fi 6E
Bluetooth	5	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, QZSS, NavIC
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	No	No
Fingerprint sensor	Under display, ultrasonic	Under display
Barometer	Yes	—
Sensors	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer	Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
SAR (head)	0.32 W/kg	—
Software
OS at launch	Android 10	Android 11
Platform	Android	Android
Interface	One UI 5	MIUI 12.5