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Phone AT&T Maestro 3 OnePlus 9 HTC Amaze 4G
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
6.6" diag.
20 : 9
4.3" diag.
16 : 9
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~402 ppi)
AMOLED
540 x 960 pixels
(~256 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 120 Hz 60 Hz
Battery 3,900 mAh 4,500 mAh 1,730 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761) Qualcomm Snapdragon 888 1.5 GHz Qualcomm Snapdragon S3 dual-core
RAM 3 GB 8 GB * 1 GB
Storage 32 GB 128 GB * 16 GB
Main Camera 13 megapixel 48 megapixel 8 megapixel
Wide Camera 5 megapixel 50 megapixel -
Tele Camera - - -
Video Capture 1080p HD 8K 1080p HD
Front Camera 5 megapixel 16 megapixel 2 megapixel
Weight 6.24 oz
(177g)
6.77 oz
(192g)
6.1 oz
(173g)
Dimensions 6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
6.3" x 2.92" x 0.34"
(160 x 74 x 8.7 mm)
5.12" x 2.58" x 0.46"
(130 x 66 x 11.7 mm)
Platform / OS Android Android Android
Network Bands

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

5G: 1, 2, 3, 5, 7, 8, 20, 25, 28, 38, 40, 41, 48, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 28, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8, 19

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) NR (5G) HSPA+ 42
Features 
Barometer Yes - -
Fingerprint Reader Yes
stand-alone
Yes
in-display (optical)
-
Flashlight Yes Yes Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes
TTY/TDD (Digital) - Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
NFC - Yes Yes
USB Yes
USB Type C
Yes
USB Type C
Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 a,b,g,n)
Input
Side Keys Yes Yes Yes
Touch Screen Yes Yes Yes
Memory
Memory Card Slot Yes - Yes
Music
FM Radio - - Yes
Headphone Jack (3.5mm) Yes - Yes
Stereo Speakers - Yes -
Photo & Video
DLNA - - Yes
TV Output - - Yes
Power
Fast Charging - Yes -
Wireless Charging - Yes -
Voice
HD Voice Yes Yes -
Speaker Phone Yes Yes Yes
  AT&T Maestro 3 OnePlus 9 HTC Amaze 4G
  X > < X > < X

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Phone AT&T Maestro 3 OnePlus 9 HTC Amaze 4G

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