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Galaxy S20 Ultra 5G vs Redmi K30 Ultra

Samsung Galaxy S20 Ultra 5G vs Xiaomi Redmi K30 Ultra

What Galaxy S20 Ultra 5G does better (23) and where Redmi K30 Ultra wins (1) — every spec side by side.

Samsung · 2020Galaxy S20 Ultra 5G

9.1Score

23 advantages≈ $250

Higher score

Xiaomi · 2020Redmi K30 Ultra

7.7Score

1 advantage≈ $270

9.2Display7.2

9.8Camera7.8

7.1Battery4.2

9.5Features8.7

Dimensions

Size comparison

Galaxy S20 Ultra 5GRedmi K30 Ultra

	Galaxy S20 Ultra 5G	Redmi K30 Ultra	Difference
Height	166.9 mm	163.3 mm	+3.6 mm
Width	76 mm	75.4 mm	+0.6 mm
Thickness	8.8 mm	9.1 mm	−0.3 mm
Weight	222 g	213 g	+9 g

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

Why is Galaxy S20 Ultra 5G better than Redmi K30 Ultra?

RAM16 GB vs 8 GB2×
Peak brightness1,400 nits vs 500 nits2.8×
Main camera108 MP vs 64 MP+69%
Optical stabilisationYes · Redmi K30 Ultra: No
Wireless chargingYes · Redmi K30 Ultra: No
Optical zoom4× vs 2.1×+90%
Wired charging45 W vs 33 W+36%
Battery capacity5,000 mAh vs 4,500 mAh+11%
Pixel density511 ppi vs 395 ppi+29%
Memory card slotYes · Redmi K30 Ultra: No
Max video8K vs 4K
4K video frame rate60 fps vs 30 fps2×

Why is Redmi K30 Ultra better than Galaxy S20 Ultra 5G?

Weight222 g vs 213 g+4%

Specifications

Side by side

Only differences	Samsung Galaxy S20 Ultra 5G≈ $2509.1	Xiaomi Redmi K30 Ultra≈ $2707.7
Design
Weight	222 g	213 g
Thickness	8.8 mm	9.1 mm
Height	166.9 mm	163.3 mm
Width	76 mm	75.4 mm
Frame	Aluminium	Aluminium
Back	Glass	Glass
Ingress protection	IP68	—
Water resistance (IPx)	IPx8	—
Glass protection	Corning Gorilla Glass 6	Corning Gorilla Glass 5
Colours	Cosmic Grey, Cosmic Black, Cloud White	Moonlight White, Midnight Black, Mint Green
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	500 nits
Measured brightness	894 nits	—
Screen-to-body ratio	89.9%	87.2%
HDR	Yes	Yes
Performance
Chipset	Exynos 990 - Global	Mediatek Dimensity 1000+
Chip maker	Qualcomm	MediaTek
Process	7 nm	7 nm
CPU cores	8	8
CPU frequency	2.84 GHz	2.6 GHz
GPU	Mali-G77 MP11 - Global Adreno 650 - USA	Mali-G77 MC9
AnTuTu score	415,976	—
Geekbench 6 (multi-core)	12,191	—
Memory
RAM	16 GB	8 GB
Storage (max)	512 GB	512 GB
Storage (base)	128 GB	128 GB
Storage type	UFS 3.0	—
Memory card slot	Yes	No
Camera
Main camera	108 MP	64 MP
Main camera aperture	f/1.8	f/1.9
Main sensor size	1/1.33"	1/1.73"
Rear cameras	3	2
Optical stabilisation	Yes	No
Ultra-wide camera	Yes	Yes
Telephoto camera	Yes	Yes
Optical zoom	4×	2.1×
Max video	8K	4K
4K video frame rate	60 fps	30 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	33 W
Charged in 30 min	—	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 6	Wi-Fi 6
Bluetooth	5	5.1
NFC	Yes	Yes
USB	USB Type-C 3.2	USB Type-C 2.0
USB version	3.2	2
Dual-band GPS	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS, QZSS
Features
Stereo speakers	Yes	Yes
3.5 mm headphone jack	No	No
Loudspeaker loudness	-23.2 LUFS	—
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 10
Platform	Android	Android
Interface	One UI 5.1	MIUI 12