Benq-Siemens EF51 vs Samsung Galaxy A21 Specs Comparison

Availability

Officially announced
Feb 13, 2006	Apr 08, 2020
Prices (MSRP)
	$250

Design

Dimensions
3.50 x 1.92 x 0.70 inches 89 x 49 x 18 mm	6.61 x 3.02 x 0.32 inches 167.8 x 76.7 x 8.1 mm
Weight
3.35 oz (95.0 g)	6.81 oz (193.0 g)
Materials
	Back: Plastic Frame: Plastic
Biometrics
	Fingerprint (touch)
Features
Soft keys
Keys
Left: Volume control, Camera shutter, Other	Right: Volume control, Lock/Unlock key
Colors
	Black

Display

Size
	6.5-inch, 79.20% screen-to-body
Type
TFT	IPS LCD, 60Hz
Resolution
128x128px	1600x720px, 20:9 ratio, 270 PPI
Colors
262 144

Hardware

System chip
	Mediatek Helio P35 MT6765 (12 nm)
Processor
	Octa-core 4x2.3GHz Cortex-A53 4x1.8G​Hz Cortex-A53
GPU
	PowerVR GE8320
Memory
0.02GB	3GB (LPDDR4)/32GB (eMMC 5.1)
Storage expansion
miniSD	microSDXC up to 512 GB
OS
	Android (10)

Battery

Type
870 mAh, Li - Ion	4000 mAh, Li - Polymer
Charging
	Fast charging
Charge speed
	Wired: 15.0W

Camera

Rear
Single camera	Quad camera
Main camera
1.3 MP	16 MP (PDAF) Aperture size: F1.8 Sensor size: 1/3.06" Pixel size: 1 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Sensor size: 1/4" Pixel size: 1.12 μm
Third camera
	2 MP (Macro) Aperture size: F2.4
Fourth camera
	2 MP (Depth information) Aperture size: F2.4
Flash
	LED
Video recording
	1080p (30 fps)
Front
	13 MP Video capture: 1080p

Connectivity & Features

Bluetooth
	5.0
WLAN
	a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
USB
Yes	Type-C, USB 2.0
Sensors
	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
	M4/T3
Location
	GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Other
Computer sync	NFC

Multimedia

Headphones
	3.5mm jack
Speakers
	Earpiece, Loudspeaker
Screen mirroring
	Wireless screen share
Radio
FM	FM

Cellular

4G (FDD) Bands
	1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66, 71
4G (TDD) Bands
	38, 39, 40, 41
3G Bands
	1, 2, 4, 5, 8
Other
Other version supports GSM 900/1800/1900 MHz
Data Speed
	LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
	Nano SIM
HD Voice
	Yes

Phone Features

Notifications
Music ringtones (MP3), Polyphonic ringtones (64 voices), Vibration, Phone profiles, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Jun 15, 2006 FCC ID value: JVPEF51A	Date approved: Apr 17, 2020 FCC ID value: ZCASMA215U
Measured SAR
Head: 0.91 W/kg Measured in: 1900 MHz Body: 0.35 W/kg Measured in: 1900 MHz	Head: 0.42 W/kg Body: 1.27 W/kg Simultaneous Transmission: 1.27 W/kg Wireless Router: 1.27 W/kg

Alternative variants

for Verizon

4G (FDD) Bands	1, 2, 3, 5, 7, 8, 20, 28
4G (TDD) Bands	38, 40, 41
3G Bands	5, 8, 2, 1

for Sprint

4G (FDD) Bands	2, 3, 4, 5, 7, 12, 13, 25, 26, 66, 71
4G (TDD) Bands	41

Links

Full specifications
Benq-Siemens EF51 Specs	Samsung Galaxy A21 Specs
User Reviews
	Samsung Galaxy A21 User Reviews