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Phone AT&T Maestro 3 TCL 40 XL / Jitterbug Smart 4 Samsung Galaxy A02s BlackBerry Priv (CDMA) LG K40 / Harmony 3
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
6.8" diag.
20 : 9
6.5" diag.
20 : 9
5.4" diag.
16 : 9
5.7" diag.
18 : 9
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~260 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~541 ppi)
AMOLED
720 x 1440 pixels
(~282 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 90 Hz 60 Hz 60 Hz 60 Hz
Battery 3,900 mAh 5,000 mAh 5,000 mAh 3,410 mAh 3,000 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761) 2.3 GHz MediaTek Helio G37 Qualcomm Snapdragon 450 1.8 GHz Qualcomm Snapdragon 808 (MSM8992) 1.8 GHz Qualcomm Snapdragon 450
RAM 3 GB 4 GB 2 GB 3 GB 2 GB
Storage 32 GB 128 GB 32 GB 32 GB 32 GB
Main Camera 13 megapixel 50 megapixel 13 megapixel 16 megapixel 13 megapixel
Wide Camera 5 megapixel - - - -
Tele Camera - - - - -
Video Capture 1080p HD 1080p HD 1080p HD 4K UHD 1080p HD
Front Camera 5 megapixel 8 megapixel 5 megapixel 2 megapixel 5 megapixel
Weight 6.24 oz
(177g)
6.88 oz
(195g)
6.98 oz
(198g)
6.77 oz
(192g)
5.11 oz
(145g)
Dimensions 6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
6.61" x 3.01" x 0.35"
(168 x 76 x 8.8 mm)
6.56" x 2.99" x 0.36"
(166 x 76 x 9.2 mm)
5.79" x 3.04" x 0.37"
(147 x 77 x 9.4 mm)
6.02" x 2.83" x 0.32"
(153 x 72 x 8.1 mm)
Platform / OS Android Android Android Android Android
Network Bands

4G LTE: 2, 4, 5, 12, 14, 30

4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 7, 12, 13, 25, 26, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 13, 20

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 4) LTE (Cat 6) LTE (Cat 4) LTE (Cat 6) LTE (Cat 6)
Features 
Barometer Yes Yes Yes - -
Fingerprint Reader Yes
stand-alone
Yes - - Yes
stand-alone
Flashlight Yes Yes Yes Yes Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
NFC - - - Yes Yes *
USB Yes
USB Type C
Yes
USB Type C
Yes
USB Type C
Yes
Mini-USB
Yes
Micro-USB
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Input
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen Yes Yes Yes Yes Yes
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) Yes Yes Yes Yes Yes
Stereo Speakers - Yes - - -
Photo & Video
DLNA - - - - Yes
Miracast - - - Yes -
TV Output - - - Yes -
Power
Fast Charging - Yes Yes Yes -
Wireless Charging - - - Yes -
Voice
HD Voice Yes Yes Yes Yes Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  AT&T Maestro 3 TCL 40 XL / Jitterbug Smart 4 Samsung Galaxy A02s BlackBerry Priv (CDMA) LG K40 / Harmony 3
  X > < X > < X > < X > < X

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

 
Phone AT&T Maestro 3 TCL 40 XL / Jitterbug Smart 4 Samsung Galaxy A02s BlackBerry Priv (CDMA) LG K40 / Harmony 3

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