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Phone Samsung Glyde U940 Microsoft Lumia 950 Samsung Galaxy S21 Samsung Droid Charge Samsung SCH-A990
Current U.S. Carriers (none) (none) Verizon (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.8" diag.
16.5 : 9
5.2" diag.
16 : 9
6.2" diag.
20 : 9
4.3" diag.
5 : 3
?
Display Resolution & Type 240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~565 ppi)
AMOLED
1080 x 2400 pixels
(~424 ppi)
AMOLED
480 x 800 pixels
(~217 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? ? 120 Hz 60 Hz ?
Battery 1,000 mAh 3,000 mAh 4,000 mAh 1,500 mAh 1,000 mAh
Processor ? 1.8 GHz Qualcomm Snapdragon 808 (MSM8992) 2.8 GHz Qualcomm Snapdragon 888 1 GHz Samsung Hummingbird ?
RAM ? 3 GB 8 GB ? ?
Storage ? raw hardware 32 GB 128 GB * ? raw hardware ? raw hardware
Main Camera 2 megapixel 20 megapixel 12 megapixel 8 megapixel 3 megapixel
Wide Camera - - 12 megapixel - -
Tele Camera - - 64 megapixel - -
Video Capture QVGA (320 x 240) 4K UHD 8K 720p HD ?
Front Camera - 5 megapixel 10 megapixel 1 megapixel -
Weight 4.2 oz
(119g)
5.29 oz
(150g)
6.03 oz
(171g)
5.06 oz
(144g)
4.4 oz
(125g)
Dimensions 4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
5.71" x 2.88" x 0.32"
(145 x 73 x 8.2 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
5.1" x 2.68" x 0.46"
(130 x 68 x 11.7 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slide Slab Slab Slab Clamshell
Platform / OS (proprietary) Windows Android Android (proprietary)
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 40

WCDMA: 1, 2, 4, 5, 8

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

4G LTE: 13

CDMA: 850, 1900

CDMA: 850, 1900

Data Technology EVDO r0 LTE (Cat 6) NR (5G) LTE (Cat 3) EVDO r0
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes
in-display (ultrasonic)
- -
Flashlight - Yes Yes - Yes
GPS / Location Yes n/a n/a n/a Yes
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size - n/a n/a n/a -
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - n/a n/a n/a -
NFC - Yes Yes - -
USB Yes Yes
USB Type C
Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a n/a n/a Yes
Ringer ID Yes n/a n/a n/a Yes
Voice Dialing Yes n/a n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a n/a Yes
Custom Ringtones Yes n/a n/a n/a Yes
Real-Music Ringers Yes n/a n/a n/a Yes
Data & Network
Data Tethering Yes n/a n/a n/a Yes
WAP / Web Browser Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes Yes Yes Yes -
Memory
Memory Card Slot Yes Yes - Yes Yes
Messaging
Email Client - n/a n/a n/a -
EMS / Picture Messaging - n/a n/a n/a Yes
Instant Messaging - n/a n/a n/a -
MMS Yes n/a n/a n/a Yes
Text Messaging Templates Yes n/a n/a n/a Yes
Music
Headphone Jack (3.5mm) - Yes - Yes -
Music Player Yes n/a n/a n/a Yes
Stereo Speakers - - Yes - Yes
Photo & Video
DLNA - Yes - Yes -
Miracast - Yes - - -
TV Output - Yes Yes Yes Yes
Video Calling - n/a n/a n/a -
Power
Fast Charging - Yes Yes - -
Wireless Charging - Yes Yes - -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List - n/a n/a n/a -
Voice Memo - n/a n/a n/a Yes
Software
BREW Yes n/a n/a n/a Yes
Games Yes n/a n/a n/a Yes
Voice
HD Voice - Yes Yes - -
Headset Jack (2.5 mm) Yes n/a n/a n/a -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Glyde U940 Microsoft Lumia 950 Samsung Galaxy S21 Samsung Droid Charge Samsung SCH-A990
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Glyde U940 Microsoft Lumia 950 Samsung Galaxy S21 Samsung Droid Charge Samsung SCH-A990

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