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Phone Motorola i580 HTC Bolt Amazon Fire ZTE Z221
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 5.5" diag.
16 : 9
4.7" diag.
16 : 9
2" diag.
4 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~534 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ?
Battery ? 3,200 mAh 2,400 mAh 900 mAh
Processor ? 2 GHz Qualcomm Snapdragon 810 (MSM8994) 2.2 GHz Qualcomm Snapdragon 800 ?
RAM ? 3 GB 2 GB ?
Storage ? raw hardware 32 GB 32 GB * 142 MB
Main Camera 1 megapixel 16 megapixel 13 megapixel Yes
Wide Camera - - - -
Tele Camera - - - -
Video Capture ? 4K UHD 1080p HD QCIF (176 x 144)
Front Camera - 8 megapixel 2 megapixel -
Weight 4.9 oz
(139g)
6.14 oz
(174g)
5.64 oz
(160g)
3.24 oz
(92g)
Dimensions 3.68" x 2.2" x 1.2"
(93 x 56 x 30.5 mm)
6.05" x 3.04" x 0.32"
(154 x 77 x 8.1 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
Form Factor Clamshell Slab Slab Clamshell
Platform / OS (proprietary) Android (proprietary) (proprietary)
Network Bands

iDEN: 800

4G LTE: 2, 3, 4, 5, 7, 12, 25, 26, 41

WCDMA: 1, 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology WiDEN LTE (Cat 9) LTE (Cat 4) HSDPA 3.6
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes Yes -
GPS / Location Yes n/a Yes Yes
Ruggedized Yes - - -
Water-Resistant - Yes
IPX7 (snorkeling)
- -
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - Yes
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot - n/a Yes -
NFC - Yes Yes -
USB - Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes n/a Yes -
Ringer ID Yes n/a Yes -
Voice Dialing Yes n/a Yes -
Customization
Custom Graphics Yes n/a - Yes
Custom Ringtones Yes n/a Yes Yes
Real-Music Ringers - n/a - Yes
Data & Network
Data Tethering Yes n/a Yes -
WAP / Web Browser Yes n/a Yes Yes
Input
Predictive Text Entry Yes n/a Yes Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes Yes -
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client - n/a Yes Yes
Instant Messaging - n/a - Yes
MMS Yes n/a Yes Yes
Text Messaging Templates Yes n/a Yes Yes
Music
Headphone Jack (3.5mm) - - Yes -
Music Player Yes * n/a Yes -
Stereo Speakers - - Yes -
Photo & Video
DLNA - Yes - -
Miracast - Yes Yes -
TV Output - - Yes -
Power
Fast Charging - Yes - -
Productivity
Alarm - n/a Yes Yes
Calculator Yes * n/a Yes Yes
Calendar Yes n/a Yes Yes
Voice Memo Yes n/a Yes Yes
Software
Games Yes n/a Yes Yes
Java (J2ME) Yes n/a - Yes
Voice
HD Voice - Yes Yes -
Headset Jack (2.5 mm) Yes n/a - -
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Motorola i580 HTC Bolt Amazon Fire ZTE Z221
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Phone Motorola i580 HTC Bolt Amazon Fire ZTE Z221

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