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Phone BlackBerry Key2 Ericsson T66 AT&T Vista
Current U.S. Carriers (none) (none) (none)
Global Availability Released Released Released
Specifications 
Display Size 4.5" diag.
5 : 3
? 5.5" diag.
18 : 9
Display Resolution & Type 1080 x 1620 pixels
(~433 ppi)
LCD (TFT/TFD)
? 720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz
Battery 3,500 mAh ? 2,450 mAh
Processor 2.2 GHz Qualcomm Snapdragon 660 ? 2 GHz MediaTek Helio A22 (MT6761V)
RAM 6 GB ? 3 GB
Storage 64 GB * ? raw hardware 32 GB
Main Camera 12 megapixel - 8 megapixel
Wide Camera - - -
Tele Camera 12 megapixel - -
Video Capture 4K UHD - 1080p HD
Front Camera 8 megapixel - 5 megapixel
Weight 5.93 oz
(168g)
2.08 oz
(59g)
5.51 oz
(156g)
Dimensions 5.96" x 2.82" x 0.33"
(151 x 72 x 8.4 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
Form Factor Slab Slab Slab
Platform / OS Android (proprietary) Android
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 28, 29, 30, 38, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

Data Technology LTE (Cat 11) - LTE (Cat 4)
Features 
Fingerprint Reader Yes
stand-alone
- -
Flashlight Yes - Yes
Accessibility
Hearing Aid Compatible Yes
M4, T3 (mostly tele-coil compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a Yes n/a
TTY/TDD (Digital) Yes - -
Alerts
Ringer Profiles - Yes -
Connectivity
Bluetooth Yes - Yes
NFC Yes - -
USB Yes
USB Type C
- Yes
USB Type C
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
- Yes
Customization
Custom Graphics n/a Yes n/a
Custom Ringtones n/a Yes n/a
Data & Network
WAP / Web Browser n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a
Side Keys Yes Yes Yes
Text Keyboard, Hardware Yes - -
Touch Screen Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes - Yes
Messaging
EMS / Picture Messaging n/a Yes n/a
Text Messaging Templates n/a Yes n/a
Music
FM Radio Yes - -
Headphone Jack (3.5mm) Yes - Yes
Photo & Video
TV Output Yes - -
Power
Fast Charging Yes - -
Productivity
Alarm n/a Yes n/a
Calculator n/a Yes n/a
Calendar n/a Yes n/a
To-Do List n/a Yes n/a
Software
Games n/a Yes n/a
Voice
HD Voice Yes - Yes
Speaker Phone Yes - Yes
  BlackBerry Key2 Ericsson T66 AT&T Vista
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone BlackBerry Key2 Ericsson T66 AT&T Vista

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