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Phone Samsung SCH-A770 Samsung Galaxy J2 / J2 Pure / J2 Dash Huawei Mate 10 Pro LG K8 (2017) BlackBerry Curve 8300
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Not yet released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
6" diag.
18 : 9
5" diag.
16 : 9
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~402 ppi)
AMOLED
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
320 x 240 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz 60 Hz ?
Battery 1,100 mAh 2,600 mAh 4,000 mAh 2,500 mAh ?
Processor ? 1.4 GHz Samsung Exynos 7570 2.4 GHz Huawei Kirin 970 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ?
RAM ? 2 GB 6 GB * 1.5 GB ?
Storage ? raw hardware 16 GB 128 GB * 16 GB ? raw hardware
Main Camera 1 megapixel 8 megapixel 12 megapixel 8 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? 1080p HD 4K UHD 1080p HD -
Front Camera - 5 megapixel 8 megapixel 5 megapixel -
Weight ? 5.43 oz
(154g)
6.28 oz
(178g)
5 oz
(142g)
3.92 oz
(111g)
Dimensions ? 5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
6.07" x 2.93" x 0.31"
(154 x 75 x 7.9 mm)
5.7" x 2.83" x 0.31"
(145 x 72 x 7.9 mm)
4.2" x 2.36" x 0.61"
(107 x 60 x 15.5 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android Android Android BlackBerry OS
Network Bands

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 12, 25

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT LTE (Cat 4) LTE (Cat 18) LTE (Cat 4) EDGE
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - Yes Yes Yes -
GPS / Location Yes n/a n/a n/a n/a
Water-Resistant - - Yes
IPX7 (snorkeling)
- -
Accessibility
Adjustable Text Size - n/a n/a n/a n/a
Hearing Aid Compatible - Yes - Yes -
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display Yes - - - -
Ringer Profiles Yes - - - Yes
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - Yes - -
NFC - - Yes - -
USB - Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a n/a n/a n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing Yes n/a n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers - n/a n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a n/a
Dual-SIM - - Yes * - -
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a 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 - Yes Yes
Messaging
Email Client - n/a n/a n/a n/a
Instant Messaging - n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player - n/a n/a n/a n/a
Photo & Video
TV Output - - Yes - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
To-Do List Yes n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
BREW Yes n/a n/a n/a n/a
Games Yes n/a n/a n/a n/a
Java (J2ME) - n/a n/a n/a n/a
Voice
Call Screening Yes - - - -
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a n/a n/a
Push-To-Talk - - - - Yes *
Speaker Phone - Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-A770 Samsung Galaxy J2 / J2 Pure / J2 Dash Huawei Mate 10 Pro LG K8 (2017) BlackBerry Curve 8300
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A770 Samsung Galaxy J2 / J2 Pure / J2 Dash Huawei Mate 10 Pro LG K8 (2017) BlackBerry Curve 8300

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