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Phone AT&T Maestro 3 Google Pixel 4 XL Nokia 6310i Samsung SGH-X820
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 6.5" diag.
20 : 9
6.3" diag.
19 : 9
? ?
Display Resolution & Type 720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
1440 x 3040 pixels
(~534 ppi)
AMOLED
96 x 65 pixels 220 x 176 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz 90 Hz ? ?
Battery 3,900 mAh 3,700 mAh ? 650 mAh
Processor 2 GHz MediaTek Helio A22 (MT6761) 2.8 GHz Qualcomm Snapdragon 855 ? ?
RAM 3 GB 6 GB ? ?
Storage 32 GB 64 GB * ? raw hardware ? raw hardware
Main Camera 13 megapixel 12 megapixel - 2 megapixel
Wide Camera 5 megapixel - - -
Tele Camera - 16 megapixel - -
Video Capture 1080p HD 4K UHD - ?
Front Camera 5 megapixel 8 megapixel - -
Weight 6.24 oz
(177g)
6.81 oz
(193g)
3.92 oz
(111g)
2.33 oz
(66g)
Dimensions 6.58" x 3.03" x 0.33"
(167 x 77 x 8.4 mm)
6.31" x 2.96" x 0.32"
(160 x 75 x 8.2 mm)
5.08" x 1.85" x 0.75"
(129 x 47 x 19.1 mm)
4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
Form Factor Slab Slab Slab Slab
Platform / OS Android Android (proprietary) (proprietary)
Network Bands

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

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

Data Technology LTE (Cat 4) LTE (Cat 18) GPRS EDGE
Features 
Barometer Yes Yes - -
Fingerprint Reader Yes
stand-alone
- - -
Flashlight Yes Yes - -
GPS / Location n/a n/a Yes -
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible Yes Yes - -
Multiple Languages n/a n/a Yes Yes
TTY/TDD (Digital) - Yes - -
Alerts
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - Yes -
NFC - Yes - -
USB Yes
USB Type C
Yes
USB Type C
- Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID n/a n/a Yes Yes
Ringer ID n/a n/a Yes Yes
Voice Dialing n/a n/a Yes -
Customization
Custom Graphics n/a n/a - Yes
Custom Ringtones n/a n/a Yes Yes
Real-Music Ringers n/a n/a - Yes
Data & Network
Data Tethering n/a n/a Yes -
Dual-SIM - Yes - -
External Antenna Jack n/a n/a - Yes
WAP / Web Browser n/a n/a Yes Yes
Input
Predictive Text Entry n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes
Touch Screen Yes Yes - -
Memory
Memory Card Slot Yes - - -
Messaging
Email Client n/a n/a - Yes
EMS / Picture Messaging n/a n/a Yes Yes
MMS n/a n/a - Yes
Text Messaging Templates n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) Yes - - -
Stereo Speakers - Yes - -
Photo & Video
TV Output - - - Yes
Power
Fast Charging - Yes - -
Wireless Charging - Yes - -
Productivity
Alarm n/a n/a Yes Yes
Calculator n/a n/a Yes Yes
Calendar n/a n/a Yes Yes
To-Do List n/a n/a Yes Yes
Voice Memo n/a n/a Yes Yes
Software
Games n/a n/a Yes Yes
Java (J2ME) n/a n/a Yes Yes
Voice
HD Voice Yes Yes - -
Speaker Phone Yes Yes - Yes
  AT&T Maestro 3 Google Pixel 4 XL Nokia 6310i Samsung SGH-X820
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Phone AT&T Maestro 3 Google Pixel 4 XL Nokia 6310i Samsung SGH-X820

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