Motorola Moto Z3 vs Samsung Galaxy A51 Specs Comparison

Design

Dimensions
6.16 x 3.01 x 0.27 inches 156.5 x 76.5 x 6.75 mm	6.24 x 2.90 x 0.31 inches 158.5 x 73.6 x 7.9 mm
Weight
5.50 oz (156.0 g)	6.07 oz (172.0 g)
Materials
Back: Glass Frame: Aluminum	Back: Plastic Frame: Plastic
Resistance
Splash
Biometrics
2D Face unlock, Fingerprint (touch)	2D Face unlock, Optical in-screen fingerprint
Keys
Left: Lock/Unlock key; Right: Volume control	Right: Volume control, Lock/Unlock key
Colors
Black	Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue

Display

Size
6.0-inch	6.5-inch
Resolution
2160x1080px, 18:9 ratio, 402 PPI	2400x1080px, 20:9 ratio, 405 PPI
Technology
Super AMOLED	Super AMOLED
Refresh rate
	60Hz
Screen-to-body
77.92 %	87.37 %
Colors
16 777 216
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor	Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 835 MSM8998 (10 nm)	Samsung Exynos 9611 (10 nm)
Processor
Octa-core 2450 MHz Kryo 280	Octa-core 2300 MHz 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53
GPU
Adreno 540	Mali-G72 MP3
RAM
4GB (LPDDR4)	4GB (LPDDR4)
Internal storage
64GB	128GB, available to use: 105.9 GB
Storage expansion
microSDXC up to 2000 GB	microSDXC up to 512 GB
OS
Android (9.0 Pie, 8.1 Oreo)	Android (11, 10), Samsung One UI

Battery

Capacity
3000 mAh	4000 mAh
Type
Li - Ion	Li - Polymer
Charging
Motorola TurboPower	Fast charging

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

5h 22min

Browsing

11h 35min

Video

8h 35min

Gaming

6h 40min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Dual camera	Quad camera
Main camera
12 MP (Laser and PDAF, CMOS image sensor) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2.9" Pixel size: 1.25 μm	48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm
Second camera
12 MP (Black and White, Laser and PDAF, CMOS image sensor) Aperture size: F2.0 Focal Length: 26 mm Sensor size: 1/2.9" Pixel size: 1.25 μm	12 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 13 mm Pixel size: 1.12 μm
Third camera
	5 MP (Macro) Aperture size: F2.4 Focal Length: 40 mm
Fourth camera
	5 MP (Depth information) Aperture size: F2.2 Sensor size: 1/5" Pixel size: 1.12 μm
Flash
Dual LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) Time-lapse video, Picture-taking during video recording, Video calling, Video sharing	3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps) Hyperlapse, EIS
Front
8 MP (Wide Angle), Video capture: 1920x1080 (Full HD)	32 MP (HDR), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0	5.0
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C, USB 2.0
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass	Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Other
NFC, VoIP, Tethering, Computer sync, OTA sync	NFC, ANT+

Multimedia

Headphones
No 3.5mm jack	3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Loudspeaker
Features
aptX-HD	Dolby Atmos
Screen mirroring
Wireless screen share	Wireless screen share
Radio
	FM
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)	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), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+)	Bands 38(2600), 39(1900+), 41(2600+)
3G
Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)	Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, HSUPA, UMTS	LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM	Nano SIM

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording

Regulatory Approval

FCC approval
Date approved: Jun 29, 2018 FCC ID value: IHDT56XJ1	Date approved: Nov 28, 2019 FCC ID value: A3LSMA515FN
Measured SAR
Head: 0.79 W/kg Body: 1.18 W/kg Simultaneous Transmission: 1.58 W/kg Wireless Router: 1.18 W/kg Phablet: 3.48 W/kg	Head: 0.89 W/kg Body: 1.18 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.12 W/kg Phablet: 2.76 W/kg

Buyers information

MSRP
$ 480	$ 400
In The Box
TurboPower charger, USB-C cable, headset adapter, guides

Availability

Officially announced
Aug 03, 2018	Dec 12, 2019

Alternative variants

with 128GB storage

RAM	6GB
Internal storage	128GB

for Verizon

4G (FDD)	Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 13(700 c), 20(800 DD), 28(700 APT), 66(AWS-3)
3G	Bands 5(850), 8(900), 2(1900), 1(2100)

for AT&T

4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for Sprint

4G (FDD)	Bands 2(1900), 4(AWS-1), 5(850), 12(700 a), 13(700 c), 25(1900+), 26(850+), 66(AWS-3), 71(600)
4G (TDD)	Bands 41(2600+)

for Europe

4G (FDD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)	Bands 38(2600), 40(2300), 41(2600+)
Dual SIM	Yes

Links

Full specifications
Motorola Moto Z3 Specs	Samsung Galaxy A51 Specs
PhoneArena Review
Motorola Moto Z3 Review	Samsung Galaxy A51 Review
User Reviews
Motorola Moto Z3 User Reviews	Samsung Galaxy A51 User Reviews