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Galaxy A12 vs Galaxy S21 Ultra 5G

Samsung Galaxy A12 vs Samsung Galaxy S21 Ultra 5G

What Galaxy A12 does better (3) and where Galaxy S21 Ultra 5G wins (33) — every spec side by side.

Samsung · 2020Galaxy A12

4.4Score

3 advantages≈ $85

Samsung · 2021Galaxy S21 Ultra 5G

9.0Score

33 advantages≈ $260

Higher score

2.6Display9.1

2.2Performance6.7

5.3Camera9.8

4.0Battery6.2

4.3Features9.4

Dimensions

Size comparison

Galaxy A12Galaxy S21 Ultra 5G

	Galaxy A12	Galaxy S21 Ultra 5G	Difference
Height	164 mm	165.1 mm	−1.1 mm
Width	75.8 mm	75.6 mm	+0.2 mm
Thickness	8.9 mm	8.9 mm	=
Weight	205 g	227 g	−22 g

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

Why is Galaxy A12 better than Galaxy S21 Ultra 5G?

Memory card slotYes · Galaxy S21 Ultra 5G: No
3.5 mm headphone jackYes · Galaxy S21 Ultra 5G: No
Weight205 g vs 227 g+11%

Why is Galaxy S21 Ultra 5G better than Galaxy A12?

AnTuTu score107,189 vs 657,1506.1×
Geekbench 6 (multi-core)1,034 vs 3,5183.4×
RAM6 GB vs 16 GB2.7×
Main camera48 MP vs 108 MP2.2×
Refresh rate60 Hz vs 120 Hz2×
Peak brightness450 nits vs 1,500 nits3.3×
Storage (max)128 GB vs 512 GB4×
Wired charging15 W vs 25 W+67%
Measured brightness472 nits vs 1,023 nits2.2×
OLED panelNo · Galaxy A12: Yes
Optical stabilisationNo · Galaxy A12: Yes
Telephoto cameraNo · Galaxy A12: Yes

Specifications

Side by side

Only differences	Samsung Galaxy A12≈ $854.4	Samsung Galaxy S21 Ultra 5G≈ $2609.0
Design
Weight	205 g	227 g
Thickness	8.9 mm	8.9 mm
Height	164 mm	165.1 mm
Width	75.8 mm	75.6 mm
Frame	Plastic	Aluminium
Back	Plastic	Glass
Ingress protection	—	IP68
Water resistance (IPx)	—	IPx8
Glass protection	—	Corning Gorilla Glass Victus
Colours	Black, White, Blue, Red	Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy
Stylus	—	Yes
Display
Screen size	6.5″	6.8″
Panel	PLS LCD	Dynamic AMOLED 2X
OLED panel	No	Yes
Resolution (width)	720 px	1,440 px
Resolution (height)	1,600 px	3,200 px
Pixel density	270 ppi	515 ppi
Refresh rate	60 Hz	120 Hz
Peak brightness	450 nits	1,500 nits
Measured brightness	472 nits	1,023 nits
Screen-to-body ratio	82.1%	89.8%
HDR	—	Yes
Performance
Chipset	Mediatek MT6765 Helio P35	Exynos 2100 - International
Chip maker	MediaTek	Qualcomm
Process	12 nm	5 nm
CPU cores	8	8
CPU frequency	2.35 GHz	2.9 GHz
GPU	PowerVR GE8320	Mali-G78 MP14 - International Adreno 660 - USA/China
AnTuTu score	107,189	657,150
Geekbench 6 (multi-core)	1,034	3,518
Memory
RAM	6 GB	16 GB
Storage (max)	128 GB	512 GB
Storage (base)	32 GB	128 GB
Storage type	eMMC 5.1	UFS 3.1
Memory card slot	Yes	No
Camera
Main camera	48 MP	108 MP
Main camera aperture	f/2	f/1.8
Main sensor size	1/2"	1/1.33"
Rear cameras	2	4
Optical stabilisation	No	Yes
Ultra-wide camera	Yes	Yes
Telephoto camera	No	Yes
Optical zoom	—	10×
Max video	1080p	8K
4K video frame rate	—	60 fps
Selfie camera	8 MP	40 MP
4K selfie video	No	Yes
Battery
Battery capacity	5,000 mAh	5,000 mAh
Battery type	Li-Po	Li-Ion
Wired charging	15 W	25 W
Charged in 30 min	20%	54%
Wireless charging	No	Yes
Wireless charging power	—	15 W
Reverse wireless charging	—	Yes
Connectivity
5G	No	Yes
eSIM	No	Yes
Dual SIM	Yes	Yes
Wi-Fi standard	Wi-Fi 4	Wi-Fi 6E
Bluetooth	5	5.2
NFC	Yes	Yes
USB	USB Type-C 2.0	USB Type-C 3.2
USB version	2	3.2
Ultra Wideband	—	Yes
Satellite navigation	GLONASS, GALILEO, BDS	GLONASS, GALILEO, BDS
Features
Stereo speakers	No	Yes
3.5 mm headphone jack	Yes	No
Loudspeaker loudness	-30.4 LUFS	-25.5 LUFS
Fingerprint sensor	Side	Under display, ultrasonic
Barometer	—	Yes
Sensors	Fingerprint (side-mounted), accelerometer	Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
SAR (head)	0.67 W/kg	0.71 W/kg
Software
OS at launch	Android 10	Android 11
Platform	Android	Android
Interface	One UI 4.1	One UI 7
Major OS updates promised	—	4