Samsung Galaxy A20s vs Samsung Galaxy A51

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Galaxy A20s compared with Galaxy A51

	SamsungGalaxy A20s	SamsungGalaxy A51
Overview
Released
Released	September 2019	December 2019
Display
Screen size
Screen size	6.5″	6.5″
Resolution
Resolution	1560 × 720	2400 × 1080 (better)
Sharpness
Sharpness	264 pixels per inch	405 pixels per inch (better)
Panel
Panel	LCD	OLED
Display type
Display type	HD+ TFT Infinity-V display	Super AMOLED Infinity-O display; 6.3-inch viewable diagonal accounting for rounded corners
Performance
Chip
Chip	Snapdragon 450	Exynos 9611
Memory
Memory	3 GB – 4 GB	4 GB
Storage
Storage	32 GB, 64 GB	128 GB (better)
CPU
CPU	–	Octa-core, four cores at 2.3 GHz and four at 1.7 GHz; Exynos 9611 confirmed by Samsung support
Storage type
Storage type	32 GB or 64 GB internal storage; dedicated microSD slot up to 512 GB	Dedicated microSD slot supports cards up to 512 GB; 107 GB available on the 128 GB model
Cameras
Main camera
Main camera	13 MP	48 MP (better)
Ultra wide camera
Ultra wide camera	8 MP	12 MP
Telephoto camera
Telephoto camera	None	None
Optical zoom
Optical zoom	None	None
Front camera
Front camera	8 MP	32 MP (better)
Main camera
Main camera	13 MP, F1.8, autofocus; no optical image stabilisation	48 MP, F2.0, autofocus; no optical image stabilisation
Ultra wide camera
Ultra wide camera	8 MP, F2.2, 120-degree field of view	12 MP, F2.2
Front camera
Front camera	8 MP, F2.0	32 MP, F2.2, fixed focus
Zoom
Zoom	–	Digital zoom up to 8×
Video recording
Video recording	–	UHD 4K 3840 × 2160 at 30 fps; HD slow motion at 240 fps
Camera features
Camera features	5 MP, F2.2 rear depth lens; 1080p video at 30 fps	5 MP F2.4 macro and 5 MP F2.2 depth cameras; Super Steady ultra-wide video in Full HD; rear flash
Battery and charging
Battery
Battery	4,000 mAh	4,000 mAh
Video playback (maker's claim)
Video playback (maker's claim)	–	Up to 20 hours
Wired charging
Wired charging	Up to 15 W	Up to 15 W
Wireless charging
Wireless charging	None	None
Battery life detail
Battery life detail	–	4,000 mAh typical, 3,890 mAh rated; up to 20 hours video playback
Wired charging
Wired charging	–	15 W fast charging
Design
Type
Type	Standard	Standard
Weight
Weight	183 g	172 g (better)
Thickness
Thickness	8 mm	7.9 mm (better)
Height × width
Height × width	163.3 × 77.5 mm	158.5 × 73.6 mm
Materials
Materials	Plastic body with glossy finish	–
Colours
Colours	Black, blue and green in India	Prism Crush Black, White and Blue
Biometrics
Biometrics	Rear fingerprint reader and face recognition	In-screen fingerprint reader
Sensors
Sensors	–	Accelerometer, fingerprint sensor, gyroscope, geomagnetic sensor, Hall sensor, light sensor and virtual proximity sensing
Speakers
Speakers	–	Mono speaker and 3.5 mm headphone socket
Software
Operating system
Operating system	Android	Android
Software at launch
Software at launch	Android 9 Pie with One UI	Android 10 with One UI 2 (TechRadar)
Safety features
Safety features	–	Samsung Knox
Connectivity
Mobile network
Mobile network	–	4G LTE, 3G WCDMA and 2G GSM
SIM
SIM	Dual nano-SIM plus dedicated microSD slot on SM-A207F	Dual nano-SIM with separate microSD slot
Wi-Fi
Wi-Fi	Wi-Fi 802.11b/g/n at 2.4 GHz	Wi-Fi 5 (802.11a/b/g/n/ac), 2.4 and 5 GHz
Bluetooth
Bluetooth	Bluetooth 4.2	Bluetooth 5.0
NFC
NFC	–	Supported
USB
USB	USB Type-C 2.0; 3.5 mm headphone socket	USB Type-C, USB 2.0
Positioning
Positioning	GPS, GLONASS, BeiDou and Galileo	GPS, GLONASS, BeiDou and Galileo