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Phone ZTE Z998 / Unico LTE Nokia 3620 Samsung SPH-A660 / VI660 Motorola Moto Z2 Play Sony Xperia PRO-I
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 4.5" diag.
16 : 9
? ? 5.5" diag.
16 : 9
6.5" diag.
21 : 9
Display Resolution & Type 540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
176 x 208 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (Color)
1080 x 1920 pixels
(~401 ppi)
AMOLED
1644 x 3840 pixels
(~643 ppi)
AMOLED
Display Refresh 60 Hz ? ? 60 Hz 120 Hz
Battery 2,070 mAh 850 mAh ? 3,000 mAh 4,500 mAh
Processor 1.2 GHz Qualcomm Snapdragon 400 MSM8930 ? ? 2.2 GHz Qualcomm Snapdragon 626 (MSM8953Pro) Qualcomm Snapdragon 888
RAM 1 GB ? ? 3 GB * 12 GB
Storage 4 GB ? raw hardware ? raw hardware 32 GB * 512 GB
Main Camera 5 megapixel Yes - 12 megapixel 12 megapixel
Wide Camera - - - - 12 megapixel
Tele Camera - - - - 12 megapixel
Video Capture 720p HD ? - 4K UHD 4K UHD
Front Camera 1 megapixel - - 5 megapixel 8 megapixel
Weight 4.8 oz
(136g)
4.59 oz
(130g)
3.54 oz
(100g)
5.11 oz
(145g)
7.44 oz
(211g)
Dimensions 5.2" x 2.6" x 0.4"
(132 x 66 x 10.2 mm)
5.1" x 2.24" x 1"
(130 x 57 x 25.4 mm)
3.3" x 1.8" x 0.87"
(84 x 46 x 22.1 mm)
6.15" x 3" x 0.24"
(156 x 76 x 6 mm)
6.54" x 2.83" x 0.35"
(166 x 72 x 8.9 mm)
Form Factor Slab Slab Clamshell Slab Slab
Platform / OS Android S60 (Symbian) (proprietary) Android Android
Network Bands

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

GSM: 850, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 30, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

5G: 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 3) GPRS 1xRTT LTE (Cat 6) NR (5G)
Features 
Fingerprint Reader - - - Yes
stand-alone
Yes
stand-alone
Flashlight - - - Yes Yes
GPS / Location n/a n/a Yes n/a n/a
Water-Resistant - - - Yes Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size n/a n/a - n/a n/a
Hearing Aid Compatible Yes
M3, T4 (very tele-coil compatible)
- - Yes
M3, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a n/a Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Ringer Profiles - Yes - - -
Connectivity
Bluetooth 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
USB Type C
Yes
USB Type C
Wi-Fi Yes
4 (802.11 b,g,n)
- - Yes
4 (802.11 a,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID n/a n/a Yes n/a n/a
Ringer ID n/a n/a Yes n/a n/a
Voice Dialing n/a n/a Yes n/a n/a
Customization
Changeable Body Plates - Yes - - -
Custom Graphics n/a n/a Yes n/a n/a
Custom Ringtones n/a n/a Yes n/a n/a
Real-Music Ringers n/a n/a - n/a n/a
Data & Network
Data Tethering n/a n/a Yes n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser n/a n/a Yes n/a n/a
Input
Predictive Text Entry n/a n/a Yes n/a n/a
Side Keys Yes - Yes Yes 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 n/a
Instant Messaging n/a n/a - n/a n/a
MMS n/a n/a - n/a n/a
Text Messaging Templates n/a n/a - n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) Yes - - Yes Yes
Music Player n/a n/a - n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
TV Output - - - - Yes
Power
Fast Charging - - - Yes Yes
Productivity
Alarm n/a n/a Yes n/a n/a
Calculator n/a n/a Yes n/a n/a
Calendar n/a n/a Yes n/a n/a
To-Do List n/a n/a Yes n/a n/a
Voice Memo n/a n/a Yes n/a n/a
Software
Games n/a n/a Yes n/a n/a
Java (J2ME) n/a n/a Yes n/a n/a
Voice
HD Voice - - - Yes Yes
Headset Jack (2.5 mm) n/a n/a Yes n/a n/a
Speaker Phone Yes Yes - Yes Yes
  * Some versions only
  ZTE Z998 / Unico LTE Nokia 3620 Samsung SPH-A660 / VI660 Motorola Moto Z2 Play Sony Xperia PRO-I
  X > < X > < X > < X > < X

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

 
Phone ZTE Z998 / Unico LTE Nokia 3620 Samsung SPH-A660 / VI660 Motorola Moto Z2 Play Sony Xperia PRO-I

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