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Phone ZTE Obsidian Samsung Galaxy S II, Epic 4G Touch Samsung Galaxy S22 Ericsson T66 Samsung Wafer R510
Current U.S. Carriers (none) (none) Verizon (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4.5" diag.
16 : 9
4.5" diag.
5 : 3
6.1" diag.
19.5 : 9
? 1.9" diag.
4 : 3
Display Resolution & Type 480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~206 ppi)
AMOLED
1080 x 2340 pixels
(~422 ppi)
AMOLED
? 220 x 176 pixels
(~148 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz 120 Hz ? ?
Battery 1,800 mAh 1,800 mAh 3,700 mAh ? 800 mAh
Processor 1 GHz MediaTek / MT6735M 1.2 GHz Samsung Exynos C210 dual-core Snapdragon 8 Gen 1 ? ?
RAM 1 GB ? 8 GB ? ?
Storage 8 GB 16 GB 128 GB * ? raw hardware ? raw hardware
Main Camera 5 megapixel 8 megapixel 50 megapixel - 1 megapixel
Wide Camera - - 12 megapixel - -
Tele Camera - - 10 megapixel - -
Video Capture 720p HD 1080p HD 8K - ?
Front Camera 2 megapixel 2 megapixel 10 megapixel - -
Weight 4.66 oz
(132g)
4.55 oz
(129g)
5.93 oz
(168g)
2.08 oz
(59g)
2.47 oz
(70g)
Dimensions 5.41" x 2.7" x 0.39"
(137 x 69 x 10 mm)
5.1" x 2.7" x 0.38"
(130 x 69 x 9.6 mm)
5.75" x 2.78" x 0.3"
(146 x 71 x 7.6 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
4.45" x 1.97" x 0.33"
(113 x 50 x 8.4 mm)
Form Factor Slab Slab Slab Slab Slab
Platform / OS Android Android Android (proprietary) (proprietary)
Network Bands

4G LTE: 2, 4, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G WiMAX: 41

CDMA: 800, 850, 1900

*

5G: 2, 5, 7, 12, 25, 30, 38, 41, 48, 66, 71, 77-A, 77-C, 78, 257, 258, 260, 261

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

CDMA: 850, 1900

Data Technology LTE (Cat 4) WiMAX NR (5G) - EVDO r0
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes
in-display (ultrasonic)
- -
Flashlight Yes - Yes - -
GPS / Location 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
Multiple Languages n/a n/a n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes Yes Yes - Yes
Mobile Hotspot n/a n/a n/a - -
NFC - - 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 n/a n/a - Yes
Ringer ID n/a n/a n/a - -
Voice Dialing n/a n/a n/a - Yes
Customization
Custom Graphics n/a n/a n/a Yes Yes
Custom Ringtones n/a n/a n/a Yes Yes
Real-Music Ringers n/a n/a n/a - -
Data & Network
Data Tethering n/a n/a n/a - -
WAP / Web Browser n/a n/a n/a Yes Yes
Input
Predictive Text Entry n/a n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes Yes Yes - -
Memory
Memory Card Slot 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 n/a n/a n/a - Yes
Text Messaging Templates n/a n/a n/a Yes -
Music
Headphone Jack (3.5mm) Yes Yes - - -
Music Player n/a n/a n/a - Yes
Stereo Speakers - - Yes - Yes
Photo & Video
DLNA - Yes - - -
TV Output - Yes Yes - -
Power
Fast Charging - - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm n/a n/a n/a Yes Yes
Calculator n/a n/a n/a Yes Yes
Calendar n/a n/a n/a Yes Yes
To-Do List n/a n/a n/a Yes -
Voice Memo n/a n/a n/a - Yes
Software
BREW n/a n/a n/a - Yes
Games n/a n/a n/a Yes Yes
Voice
HD Voice - - Yes - -
Speaker Phone Yes Yes Yes - Yes
  ZTE Obsidian Samsung Galaxy S II, Epic 4G Touch Samsung Galaxy S22 Ericsson T66 Samsung Wafer R510
  X > < X > < X > < X > < X

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

 
Phone ZTE Obsidian Samsung Galaxy S II, Epic 4G Touch Samsung Galaxy S22 Ericsson T66 Samsung Wafer R510

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