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Phone Sony Ericsson K750 / W800 / D750 / W700 Motorola Moto X (CDMA, 2nd gen.) Samsung Wafer R510 Samsung Galaxy S21
Current U.S. Carriers (none) (none) (none) Verizon
Global Availability Released Released Released Released
Specifications 
Display Size ? 5.2" diag.
16 : 9
1.9" diag.
4 : 3
6.2" diag.
20 : 9
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
AMOLED
220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~424 ppi)
AMOLED
Display Refresh ? 60 Hz ? 120 Hz
Battery 900 mAh 2,300 mAh 800 mAh 4,000 mAh
Processor ? 2.5 GHz Qualcomm Snapdragon 801 (MSM8974-AC) ? 2.8 GHz Qualcomm Snapdragon 888
RAM ? 2 GB ? 8 GB
Storage ? raw hardware 16 GB * ? raw hardware 128 GB *
Main Camera 2 megapixel 13 megapixel 1 megapixel 12 megapixel
Wide Camera - - - 12 megapixel
Tele Camera - - - 64 megapixel
Video Capture ? 4K UHD ? 8K
Front Camera - 2 megapixel - 10 megapixel
Weight 3.49 oz
(99g)
5.08 oz
(144g)
2.47 oz
(70g)
6.03 oz
(171g)
Dimensions 3.94" x 1.81" x 0.79"
(100 x 46 x 20.1 mm)
5.54" x 2.85" x 0.39"
(141 x 72 x 9.9 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
Form Factor Slab Slab Slab Slab
Platform / OS (proprietary) Android (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 7, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 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

Data Technology GPRS LTE (Cat 4) EVDO r0 NR (5G)
Features 
Barometer - - - Yes
Fingerprint Reader - - - Yes
in-display (ultrasonic)
Flashlight Yes - - Yes
GPS / Location - n/a Yes n/a
Water-Resistant - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - n/a - n/a
Hearing Aid Compatible - Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) Yes - - -
Mobile Hotspot - n/a - n/a
NFC - Yes - Yes
USB Yes Yes
Micro-USB
- 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)
Contacts
Picture ID Yes n/a Yes n/a
Ringer ID Yes n/a - n/a
Voice Dialing Yes n/a Yes n/a
Customization
Custom Graphics Yes n/a Yes n/a
Custom Ringtones Yes n/a Yes n/a
Real-Music Ringers - n/a - n/a
Data & Network
Data Tethering Yes n/a - n/a
WAP / Web Browser Yes n/a Yes n/a
Input
Predictive Text Entry Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes - Yes -
Messaging
Email Client Yes n/a - n/a
EMS / Picture Messaging Yes n/a - n/a
Instant Messaging - n/a - n/a
MMS Yes n/a Yes n/a
Text Messaging Templates Yes n/a - n/a
Music
FM Radio Yes - - -
Headphone Jack (3.5mm) - Yes - -
Music Player Yes n/a Yes n/a
Stereo Speakers - - Yes Yes
Photo & Video
Miracast - Yes - -
TV Output - - - Yes
Power
Fast Charging - Yes - Yes
Wireless Charging - - - Yes
Productivity
Alarm Yes n/a Yes n/a
Calculator Yes n/a Yes n/a
Calendar Yes n/a Yes n/a
To-Do List Yes n/a - n/a
Voice Memo Yes n/a Yes n/a
Software
BREW - n/a Yes n/a
Games Yes n/a Yes n/a
Java (J2ME) Yes n/a - n/a
Voice
HD Voice - - - Yes
Speaker Phone Yes Yes Yes Yes
  Sony Ericsson K750 / W800 / D750 / W700 Motorola Moto X (CDMA, 2nd gen.) Samsung Wafer R510 Samsung Galaxy S21
  X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson K750 / W800 / D750 / W700 Motorola Moto X (CDMA, 2nd gen.) Samsung Wafer R510 Samsung Galaxy S21

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