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Phone Motorola Moto Z2 Force Samsung Galaxy S21 Sony Ericsson W600i / W550i Motorola Moto X4 Samsung Knack U310
Current U.S. Carriers (none) Verizon (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 5.5" diag.
16 : 9
6.2" diag.
20 : 9
? 5.2" diag.
16 : 9
2.2" diag.
4 : 3
Display Resolution & Type 1440 x 2560 pixels
(~534 ppi)
AMOLED
1080 x 2400 pixels
(~424 ppi)
AMOLED
176 x 220 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 120 Hz ? 60 Hz ?
Battery 2,730 mAh 4,000 mAh ? 3,000 mAh 1,000 mAh
Processor 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) 2.8 GHz Qualcomm Snapdragon 888 ? 2.2 GHz Qualcomm Snapdragon 630 ?
RAM 4 GB 8 GB ? 3 GB ?
Storage 64 GB 128 GB * ? raw hardware 32 GB ? raw hardware
Main Camera 12 megapixel 12 megapixel 1 megapixel 12 megapixel -
Wide Camera - 12 megapixel - 8 megapixel -
Tele Camera - 64 megapixel - - -
Video Capture 4K UHD 8K ? 4K UHD -
Front Camera 5 megapixel 10 megapixel - 16 megapixel -
Weight 5.04 oz
(143g)
6.03 oz
(171g)
4.2 oz
(119g)
5.75 oz
(163g)
3.63 oz
(103g)
Dimensions 6.13" x 2.99" x 0.24"
(156 x 76 x 6.1 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
3.66" x 1.83" x 0.89"
(93 x 46 x 22.6 mm)
5.84" x 2.89" x 0.31"
(148 x 73 x 8 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
Form Factor Slab Slab Swivel Slab Clamshell
Platform / OS Android Android (proprietary) Android (proprietary)
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 16) NR (5G) EDGE LTE (Cat 11) -
Features 
Barometer Yes Yes - - -
Fingerprint Reader Yes
stand-alone
Yes
in-display (ultrasonic)
- Yes
stand-alone
-
Flashlight Yes Yes Yes Yes -
GPS / Location n/a n/a - n/a Yes
VR-ready Yes - - - -
Water-Resistant Yes Yes
IPX8 (SCUBA)
- Yes
IPX8 (SCUBA)
-
Accessibility
Adjustable Text Size n/a n/a - n/a Yes
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes -
Infrared (IR) - - Yes - -
NFC Yes Yes - Yes -
USB Yes
USB Type C
Yes
USB Type C
Yes Yes
USB Type C
-
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a n/a Yes n/a -
Ringer ID n/a n/a Yes n/a -
Voice Dialing n/a n/a Yes n/a Yes
Customization
Changeable Body Plates - - Yes - -
Custom Graphics n/a n/a Yes n/a -
Custom Ringtones n/a n/a Yes n/a -
Data & Network
Data Tethering n/a n/a Yes n/a -
Dual-SIM Yes * - - - -
WAP / Web Browser n/a n/a Yes n/a -
Input
Predictive Text Entry n/a n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client n/a n/a Yes n/a -
EMS / Picture Messaging n/a n/a Yes n/a Yes
MMS n/a n/a Yes n/a -
Text Messaging Templates n/a n/a Yes n/a -
Music
FM Radio - - Yes - -
Headphone Jack (3.5mm) - - - Yes -
Music Player n/a n/a Yes n/a -
Stereo Speakers - Yes - - -
Photo & Video
TV Output - Yes - - -
Power
Fast Charging Yes Yes - Yes -
Wireless Charging - Yes - - -
Productivity
Alarm n/a n/a Yes n/a Yes
Calculator n/a n/a Yes n/a Yes
Calendar n/a n/a Yes n/a Yes
To-Do List n/a n/a Yes n/a -
Voice Memo n/a n/a Yes n/a -
Software
Games n/a n/a Yes n/a -
Java (J2ME) n/a n/a Yes n/a -
Voice
HD Voice Yes Yes - Yes -
Headset Jack (2.5 mm) n/a n/a - n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Motorola Moto Z2 Force Samsung Galaxy S21 Sony Ericsson W600i / W550i Motorola Moto X4 Samsung Knack U310
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Motorola Moto Z2 Force Samsung Galaxy S21 Sony Ericsson W600i / W550i Motorola Moto X4 Samsung Knack U310

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