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Phone Samsung SGH-A157 TCL 20 Pro 5G Samsung Omnia i910 ZTE Blade Z Max Samsung SPH-N270 (Matrix Phone)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.8" diag.
4 : 3
6.7" diag.
20 : 9
3.2" diag.
5 : 3
6" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~395 ppi)
AMOLED
240 x 400 pixels
(~146 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? 60 Hz ?
Battery 800 mAh 4,500 mAh 1,440 mAh 4,080 mAh 1,000 mAh
Processor ? 2 GHz Qualcomm Snapdragon 750G 624 MHz Marvell PXA312 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) ?
RAM ? 6 GB ? 2 GB ?
Storage 256 MB 256 GB 8 GB 32 GB ? raw hardware
Main Camera - 48 megapixel 5 megapixel 16 megapixel -
Wide Camera - 16 megapixel - - -
Tele Camera - - - - -
Video Capture - 4K UHD VGA (640 x 480) 1080p HD -
Front Camera - 32 megapixel - 8 megapixel -
Weight 2.99 oz
(85g)
6.82 oz
(193g)
4.16 oz
(118g)
6.58 oz
(186g)
4.66 oz
(132g)
Dimensions 3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
6.46" x 2.87" x 0.36"
(164 x 73 x 9.1 mm)
4.4" x 2.24" x 0.51"
(112 x 57 x 13 mm)
6.51" x 3.28" x 0.33"
(165 x 83 x 8.3 mm)
4.53" x 2.28" x 0.79"
(115 x 58 x 20.1 mm)
Form Factor Clamshell Slab Slab Slab Slide
Platform / OS (proprietary) Android Windows Mobile Professional Android (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

5G: 2, 5, 7, 41, 66, 71, 78

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology ? NR (5G) EVDO rA LTE (Cat 6) -
Features 
Barometer - Yes - - -
Fingerprint Reader - Yes
in-display (optical)
- Yes
stand-alone
-
Flashlight - Yes Yes Yes -
GPS / Location Yes n/a n/a n/a Yes
Water-Resistant - Yes
IPX2 (drip)
- - -
Accessibility
Adjustable Text Size Yes n/a n/a n/a -
Hearing Aid Compatible Yes Yes Yes Yes -
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Ringer Profiles Yes - - - -
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
-
Infrared (IR) - Yes - - -
NFC - Yes - - -
USB Yes
Micro-USB
Yes
USB Type C
Yes Yes
USB Type C
-
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
802.11 b,g
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 - n/a n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a n/a -
Custom Ringtones Yes n/a n/a n/a -
Real-Music Ringers Yes n/a n/a n/a -
Data & Network
Data Tethering - n/a n/a n/a -
WAP / Web Browser Yes n/a n/a n/a -
Input
Predictive Text Entry Yes n/a n/a n/a Yes
Side Keys - Yes Yes Yes -
Stylus - - Yes - -
Touch Screen - Yes Yes Yes -
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client - n/a n/a n/a -
Instant Messaging - n/a n/a n/a -
MMS Yes n/a n/a n/a -
Text Messaging Templates Yes n/a n/a n/a -
Music
FM Radio - Yes Yes Yes -
Headphone Jack (3.5mm) - Yes - Yes -
Music Player - n/a n/a n/a -
Photo & Video
DLNA - - Yes - -
TV Output - - Yes - -
Power
Fast Charging - Yes - Yes -
Wireless Charging - 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 Yes n/a n/a n/a Yes
Voice Memo Yes n/a n/a n/a Yes
Software
Games - n/a n/a n/a -
Voice
HD Voice - Yes - Yes -
Headset Jack (2.5 mm) - n/a n/a n/a Yes
Speaker Phone Yes Yes Yes Yes -
  Samsung SGH-A157 TCL 20 Pro 5G Samsung Omnia i910 ZTE Blade Z Max Samsung SPH-N270 (Matrix Phone)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-A157 TCL 20 Pro 5G Samsung Omnia i910 ZTE Blade Z Max Samsung SPH-N270 (Matrix Phone)

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