Samsung Galaxy A3 (2017) vs Samsung Galaxy S21 Ultra Specs Comparison

Display

Size
4.7-inch	6.8-inch
Resolution
1280 x 720 px, 312 PPI	3200 x 1440 px, 20:9 ratio, 516 PPI
Technology
Super AMOLED	Dynamic AMOLED
Refresh rate
	120Hz (adaptable)
Screen-to-body
67.85 %	89.33 %
Peak brightness
	1500 cd/m2 (nit)
Features
Ambient light sensor, Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Samsung Exynos 7 Octa 7870 (14 nm)	Qualcomm Snapdragon 888 SM8350 (5 nm)
Processor
Octa-core, 1600 MHz, ARM Cortex-A53, 64-bit	Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit
GPU
Mali-T830 MP2	Adreno 660
RAM
2GB (LPDDR3)	12GB (LPDDR5)
Internal storage
16GB, available to use: 9.7 GB	128GB (UFS 3.1), not expandable
Storage expansion
microSDXC up to 256 GB
OS
Android (7.0 Nougat, 6.0 Marshmallow)	Android (13, 12, 11), Samsung One UI
Device type
Smartphone	Smartphone

Battery

Capacity
2350 mAh	5000 mAh
Type
Not user replaceable	Li - Polymer, Not user replaceable
Charging
	Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Max charge speed
	Wired: 25.0W Wireless: 15.0W

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 15min

Browsing

14h 43min

Video

8h 52min

Gaming

8h 40min

Find out more details about battery and charging for all phones we have tested on our PhoneArena Battery Score page.

Camera

Rear
Single camera	Quad camera
Main camera
13 MP (Autofocus, CMOS image sensor) Specifications: Aperture size: F1.9	108 MP (OIS, Laser and PDAF) Specifications: Aperture size: F1.8 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm
Second camera
	10 MP (Telephoto, Periscope, OIS, PDAF) Specifications: Optical zoom: 10.0x Aperture size: F4.9 Focal Length: 240 mm Sensor size: 1/3.2" Pixel size: 1.22 μm
Third camera
	10 MP (Telephoto, OIS, PDAF) Specifications: Optical zoom: 3.0x Aperture size: F2.4 Focal Length: 70 mm Sensor size: 1/3.2" Pixel size: 1.22 μm
Fourth camera
	12 MP (Ultra-wide, PDAF) Specifications: Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm
Flash
LED	LED
Video recording
1920x1080 (Full HD) (30 fps)Features: Video calling, Video sharing	7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)Features: OIS, HDR, Hyperlapse, Video light, EIS
Front
8 MP	40 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

N/A

Overall

N/A

Photo

N/A

Video

Find out more details about photo and video scores for all phones we have tested on our PhoneArena Camera Score page.

Design

Dimensions
5.33 x 2.61 x 0.31 inches (135.4 x 66.2 x 7.9 mm)	6.50 x 2.98 x 0.35 inches (165.1 x 75.6 x 8.9 mm)
Weight
4.87 oz(138.0 g)	8.04 oz(229.0 g)
Materials
Back: Glass Frame: Aluminum	Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum
Resistance
Water, Dust; IP68	Water, Dust; IP68
Biometrics
Fingerprint (touch)	2D Face unlock, Ultrasonic in-screen fingerprint
Features
Touch sensitive control keys
Keys
Left: Volume control; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Black sky, Gold sand, Peach cloud, Blue mist	Phantom black, Silver

Cellular

5G
	Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave
4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 40(2300)	Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
3G
Bands 5(850), 8(900), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
SIM type
Nano SIM	Nano SIM

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback	32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM	FM, Stereo, RDS
Additional microphone(s)
	Noise cancellation, Video recording

Connectivity & Features

Bluetooth
4.2	5.1
Wi-Fi
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band MIMO, Wi-Fi Direct, Hotspot
USB
Type-C (reversible), Features: Charging, Mass storage device	Type-C (reversible), USB 3.2, Features: Charging, Headphones port, OTG, Video out
Hearing aid compatible
	M3/T3
Location
GPS, A-GPS, Glonass	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Other
NFC, ANT+, UMA (Wi-Fi Calling), Tethering, Computer sync, OTA sync	NFC, ANT+

Regulatory Approval

FCC approval
Date approved: Dec 21, 2016 FCC ID value: A3LSMA320F	Date approved: Dec 22, 2020 FCC ID value: A3LSMG998U
Measured SAR
Head: 0.45 W/kg Body: 0.74 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 0.94 W/kg	Head: 0.77 W/kg Body: 1.02 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.16 W/kg Phablet: 3.15 W/kg

Buyers information

Price
	$ 1200
In The Box
	C to C Data Cable, Ejection Pin

Availability

Officially announced
Jan 02, 2017	Jan 14, 2021

Links

Full specifications
Samsung Galaxy A3 (2017) Specs	Samsung Galaxy S21 Ultra Specs
PhoneArena Review
Samsung Galaxy A3 (2017) Review	Samsung Galaxy S21 Ultra Review
User Reviews
	Samsung Galaxy S21 Ultra User Reviews