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Phone Samsung Ace SPH-i325 Motorola Droid X2 Motorola Droid Turbo 2 Samsung SCH-A990 Nokia XR21
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.3" diag.
4 : 3
4.3" diag.
16 : 9
5.4" diag.
16 : 9
? 6.5" diag.
20 : 9
Display Resolution & Type 320 x 240 pixels
(~174 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~256 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~544 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
1080 x 2400 pixels
(~406 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? 60 Hz
Battery 1,300 mAh 1,540 mAh 3,760 mAh 1,000 mAh 4,800 mAh
Processor 416 MHz PXA270 1 GHz dual-core Nvidia Tegra 2 AP20H 2 GHz Qualcomm Snapdragon 810 ? Snapdragon 695
RAM ? ? 3 GB ? 6 GB
Storage ? raw hardware 8 GB 32 GB * ? raw hardware 128 GB
Main Camera 1 megapixel 8 megapixel 20 megapixel 3 megapixel 64 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture QVGA (320 x 240) 720p HD 4K UHD ? 1080p HD
Front Camera - - 5 megapixel - 16 megapixel
Weight 3.9 oz
(111g)
5.47 oz
(155g)
6.16 oz
(175g)
4.4 oz
(125g)
8.16 oz
(231g)
Dimensions 4.65" x 2.32" x 0.46"
(118 x 59 x 11.7 mm)
5" x 2.58" x 0.39"
(127 x 66 x 9.9 mm)
5.9" x 3.1" x 0.36"
(150 x 79 x 9.1 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.61" x 3.09" x 0.41"
(168 x 78 x 10.4 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS Windows Mobile Standard Android Android (proprietary) Android
Network Bands

CDMA: 850, 1900

GSM: 900, 1800

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

5G: 1, 2, 3, 5, 7, 20, 25, 28, 40, 41, 66, 71, 77-C, 78, 79, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 EVDO rA LTE (Cat 4) EVDO r0 NR (5G)
Features 
Barometer - - - - Yes
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - Yes Yes Yes
GPS / Location n/a n/a n/a Yes n/a
Ruggedized - - - - Yes
Water-Resistant - - Yes - Yes
IPX8 (SCUBA)
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages n/a n/a n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Extra Display - - - Yes -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot n/a n/a n/a - n/a
NFC - - Yes - Yes
USB Yes Yes Yes
Micro-USB
Yes Yes
USB Type C
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID n/a n/a n/a Yes n/a
Ringer ID n/a n/a n/a Yes n/a
Voice Dialing n/a n/a n/a Yes n/a
Customization
Custom Graphics n/a n/a n/a Yes n/a
Custom Ringtones n/a n/a n/a Yes n/a
Real-Music Ringers n/a n/a n/a Yes n/a
Data & Network
Data Tethering n/a n/a n/a Yes n/a
Dual-SIM - - - - Yes
WAP / Web Browser n/a n/a n/a Yes n/a
Input
Predictive Text Entry n/a n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen - Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes -
Messaging
Email Client n/a n/a n/a - n/a
EMS / Picture Messaging n/a n/a n/a Yes n/a
Instant Messaging n/a n/a n/a - n/a
MMS n/a n/a n/a Yes n/a
Text Messaging Templates n/a n/a n/a Yes n/a
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player n/a n/a n/a Yes n/a
Stereo Speakers - - - Yes -
Photo & Video
DLNA - Yes - - -
Miracast - - Yes - -
TV Output - Yes - Yes -
Power
Fast Charging - - Yes - Yes
Wireless Charging - - Yes - -
Productivity
Alarm n/a n/a n/a Yes n/a
Calculator n/a n/a n/a Yes n/a
Calendar n/a n/a n/a Yes n/a
To-Do List n/a n/a n/a - n/a
Voice Memo n/a n/a n/a Yes n/a
Software
BREW n/a n/a n/a Yes n/a
Games n/a n/a n/a Yes n/a
Voice
HD Voice - - Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung Ace SPH-i325 Motorola Droid X2 Motorola Droid Turbo 2 Samsung SCH-A990 Nokia XR21
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Ace SPH-i325 Motorola Droid X2 Motorola Droid Turbo 2 Samsung SCH-A990 Nokia XR21

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