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Phone Samsung Transform Samsung Knack U310 LG CG300 Nokia Lumia 810 Samsung Galaxy S21
Current U.S. Carriers (none) (none) (none) (none) Verizon
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
2.2" diag.
4 : 3
? 4.3" diag.
5 : 3
6.2" diag.
20 : 9
Display Resolution & Type 320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
480 x 800 pixels
(~217 ppi)
AMOLED
1080 x 2400 pixels
(~424 ppi)
AMOLED
Display Refresh 60 Hz ? ? ? 120 Hz
Battery 1,500 mAh 1,000 mAh 1,000 mAh 1,800 mAh 4,000 mAh
Processor 800 MHz Samsung S3C6410, Qualcomm QSC6085 ? ? 1.5 GHz Qualcomm Snapdragon 2.8 GHz Qualcomm Snapdragon 888
RAM ? ? ? 1 GB 8 GB
Storage ? raw hardware ? raw hardware ? raw hardware 8 GB 128 GB *
Main Camera 3 megapixel - Yes 8 megapixel 12 megapixel
Wide Camera - - - - 12 megapixel
Tele Camera - - - - 64 megapixel
Video Capture QVGA (320 x 240) - - 1080p HD 8K
Front Camera Yes - - 1 megapixel 10 megapixel
Weight 5.37 oz
(152g)
3.63 oz
(103g)
3.4 oz
(96g)
5.11 oz
(145g)
6.03 oz
(171g)
Dimensions 4.61" x 2.42" x 0.61"
(117 x 61 x 15.5 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
3.58" x 1.9" x 0.94"
(91 x 48 x 23.9 mm)
5" x 2.69" x 0.44"
(127 x 68 x 11.2 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
Form Factor Slide Clamshell Clamshell Slab Slab
Platform / OS Android (proprietary) (proprietary) Windows Android
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 4, 5

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

Data Technology EVDO rA - GPRS HSPA+ 42 NR (5G)
Features 
Barometer - - - - Yes
Fingerprint Reader - - - - Yes
in-display (ultrasonic)
Flashlight - - - - Yes
GPS / Location n/a Yes - n/a n/a
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size n/a Yes - n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages n/a Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - Yes Yes - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Mobile Hotspot n/a - - n/a n/a
NFC - - - Yes Yes
USB Yes
Micro-USB
- - Yes
Micro-USB
Yes
USB Type C
Wi-Fi Yes
4 (802.11 b,g,n)
- - Yes
4 (802.11 a,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID n/a - Yes n/a n/a
Ringer ID n/a - Yes n/a n/a
Voice Dialing n/a Yes - n/a n/a
Customization
Custom Graphics n/a - Yes n/a n/a
Custom Ringtones n/a - Yes n/a n/a
Real-Music Ringers n/a - Yes n/a n/a
Data & Network
Data Tethering n/a - Yes n/a n/a
WAP / Web Browser n/a - Yes n/a n/a
Input
Predictive Text Entry n/a Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes - - Yes Yes
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client n/a - Yes n/a n/a
EMS / Picture Messaging n/a Yes Yes n/a n/a
Instant Messaging n/a - Yes n/a n/a
MMS n/a - Yes n/a n/a
Text Messaging Templates n/a - Yes n/a n/a
Music
Headphone Jack (3.5mm) Yes - - Yes -
Music Player n/a - - n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
TV Output - - - - Yes
Power
Fast Charging - - - - Yes
Wireless Charging - - - Yes Yes
Productivity
Alarm n/a Yes Yes n/a n/a
Calculator n/a Yes Yes n/a n/a
Calendar n/a Yes Yes n/a n/a
Voice Memo n/a - Yes n/a n/a
Software
Games n/a - Yes n/a n/a
Java (J2ME) n/a - Yes n/a n/a
Voice
HD Voice - - - - Yes
Headset Jack (2.5 mm) n/a Yes Yes n/a n/a
Push-To-Talk - - Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Transform Samsung Knack U310 LG CG300 Nokia Lumia 810 Samsung Galaxy S21
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Transform Samsung Knack U310 LG CG300 Nokia Lumia 810 Samsung Galaxy S21

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