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Phone Microsoft Lumia 640 TCL A30 / A3 LG G Flex2 (GSM) HTC ThunderBolt Samsung Finesse R810
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 5" diag.
16 : 9
5.5" diag.
18 : 9
5.5" diag.
16 : 9
4.3" diag.
5 : 3
3.2" diag.
5 : 3
Display Resolution & Type 720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~401 ppi)
AMOLED
480 x 800 pixels
(~217 ppi)
LCD (TFT/TFD)
240 x 400 pixels
(~146 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery 2,500 mAh 3,000 mAh 3,000 mAh 1,400 mAh 1,000 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 (MSM8926) 2 GHz MediaTek Helio P22 (MT6762V) Qualcomm Snapdragon 810 1 GHz Qualcomm Snapdragon S2 MSM8655 ?
RAM 1 GB 3 GB 3 GB * 768 MB ?
Storage 8 GB 32 GB 32 GB * 8 GB ? raw hardware
Main Camera 8 megapixel 8 megapixel 13 megapixel 8 megapixel 2 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD 1080p HD 4K UHD 720p HD ?
Front Camera 1 megapixel 5 megapixel 2 megapixel 1 megapixel -
Weight 5.11 oz
(145g)
6.03 oz
(171g)
5.36 oz
(152g)
5.78 oz
(164g)
3.63 oz
(103g)
Dimensions 5.56" x 2.84" x 0.35"
(141 x 72 x 8.9 mm)
5.74" x 2.8" x 0.39"
(146 x 71 x 9.9 mm)
5.87" x 2.96" x 0.35"
(149 x 75 x 8.9 mm)
4.8" x 2.6" x 0.52"
(122 x 66 x 13.2 mm)
4.56" x 2.29" x 0.49"
(116 x 58 x 12.4 mm)
Form Factor Slab Slab Slab Slab Slab
Platform / OS Windows Android Android Android (proprietary)
Network Bands

4G LTE: 1, 2, 4, 5, 7, 12, 17, 28

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

*

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

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 12, 17, 29

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 13

CDMA: 850, 1900

CDMA: 850, 1700, 1900

Data Technology LTE (Cat 4) LTE (Cat 4) LTE (Cat 4) LTE (Cat 3) EVDO r0
Features 
Flashlight - Yes - Yes -
GPS / Location n/a n/a n/a n/a Yes
Water-Resistant - Yes
IPX2 (drip)
- - -
Accessibility
Adjustable Text Size n/a n/a n/a n/a -
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes Yes
M4 (very compatible)
Multiple Languages n/a n/a n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) - - Yes - -
Mobile Hotspot n/a n/a n/a n/a -
NFC Yes - Yes - -
USB Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID n/a n/a n/a n/a Yes
Ringer ID n/a n/a n/a n/a -
Voice Dialing n/a n/a n/a n/a Yes
Customization
Custom Graphics n/a n/a n/a n/a Yes
Custom Ringtones n/a n/a n/a n/a Yes
Real-Music Ringers n/a n/a n/a n/a Yes
Data & Network
Data Tethering n/a n/a n/a n/a -
WAP / Web Browser n/a n/a n/a n/a Yes
Input
Predictive Text Entry n/a n/a n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Stylus - - - - Yes
Touch Screen Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Yes
Resistive
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client n/a n/a n/a n/a Yes
Instant Messaging n/a n/a n/a n/a Yes
MMS n/a n/a n/a n/a Yes
Text Messaging Templates n/a n/a n/a n/a Yes
Music
FM Radio Yes - - Yes -
Headphone Jack (3.5mm) Yes Yes Yes Yes Yes
Music Player n/a n/a n/a n/a Yes
Photo & Video
DLNA Yes - Yes Yes -
Miracast Yes - Yes - -
TV Output - - Yes - -
Video Calling n/a n/a n/a n/a -
Power
Fast Charging - - Yes - -
Productivity
Alarm n/a n/a n/a n/a Yes
Calculator n/a n/a n/a n/a Yes
Calendar n/a n/a n/a n/a Yes
To-Do List n/a n/a n/a n/a -
Voice Memo n/a n/a n/a n/a Yes
Software
BREW n/a n/a n/a n/a Yes
Games n/a n/a n/a n/a Yes
Voice
HD Voice Yes Yes Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  Microsoft Lumia 640 TCL A30 / A3 LG G Flex2 (GSM) HTC ThunderBolt Samsung Finesse R810
  X > < X > < X > < X > < X

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

 
Phone Microsoft Lumia 640 TCL A30 / A3 LG G Flex2 (GSM) HTC ThunderBolt Samsung Finesse R810

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