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Phone Motorola i85s / i88s Samsung Galaxy A21 Samsung Galaxy Z Flip Samsung Renown U810 AT&T Calypso
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 6.5" diag.
20 : 9
6.7" diag.
22 : 9
2.3" diag.
4 : 3
5.5" diag.
18 : 9
Display Resolution & Type ?
LCD (Grayscale)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
1080 x 2636 pixels
(~425 ppi)
AMOLED
240 x 320 pixels
(~174 ppi)
LCD (TFT/TFD)
480 x 960 pixels
(~195 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? 60 Hz
Battery 750 mAh 4,000 mAh 3,300 mAh 800 mAh 2,500 mAh
Processor ? 2 GHz MediaTek Helio P35 (MT6765) 3 GHz Qualcomm Snapdragon 855+ ? 1.5 GHz MediaTek MT6739
RAM ? 3 GB 8 GB ? 1 GB
Storage ? raw hardware 32 GB 256 GB ? raw hardware 16 GB
Main Camera - 16 megapixel 12 megapixel 2 megapixel 5 megapixel
Wide Camera - 8 megapixel 12 megapixel - -
Tele Camera - - - - -
Video Capture - 1080p HD 4K UHD QVGA (320 x 240) 1080p HD
Front Camera - 13 megapixel 10 megapixel - 5 megapixel
Weight 4.8 oz
(136g)
6.81 oz
(193g)
6.46 oz
(183g)
4.05 oz
(115g)
6 oz
(170g)
Dimensions 5.16" x 1.97" x 1.14"
(131 x 50 x 29 mm)
6.61" x 3.02" x 0.32"
(168 x 77 x 8.1 mm)
3.44" x 2.9" x 0.68"
(87 x 74 x 17.3 mm)
3.87" x 1.95" x 0.69"
(98 x 50 x 17.5 mm)
5.91" x 2.87" x 0.39"
(150 x 73 x 9.9 mm)
Form Factor Slab Slab Foldable Clamshell Slab
Platform / OS (proprietary) Android Android (proprietary) Android
Network Bands

iDEN: 800

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

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 66, 71

WCDMA: 2, 3, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 14, 30

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology - LTE (Cat 6) LTE (Cat 16) EVDO r0 LTE (Cat 4)
Features 
Barometer - - Yes - -
Fingerprint Reader - Yes
stand-alone
Yes
stand-alone
- -
Flashlight - Yes Yes - Yes
GPS / Location Yes * n/a n/a Yes n/a
Accessibility
Adjustable Text Size - n/a n/a Yes n/a
Hearing Aid Compatible - Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Multiple Languages Yes n/a n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display - - Yes Yes -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth - Yes Yes Yes Yes
MirrorLink - - Yes - -
NFC - Yes Yes - -
USB - Yes
USB Type C
Yes
USB Type C
Yes Yes
USB Type C
Wi-Fi - Yes
5 (802.11 a,ac,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 Yes n/a
Ringer ID - n/a n/a Yes n/a
Voice Dialing Yes n/a n/a Yes n/a
Customization
Custom Graphics - n/a n/a Yes n/a
Custom Ringtones - n/a n/a Yes n/a
Data & Network
Data Tethering Yes n/a n/a Yes n/a
WAP / Web Browser Yes n/a n/a Yes n/a
Input
Predictive Text Entry Yes n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - Yes - Yes Yes
Messaging
Email Client - n/a n/a Yes n/a
EMS / Picture Messaging - n/a n/a Yes n/a
Instant Messaging - n/a n/a Yes n/a
MMS - n/a n/a Yes n/a
Text Messaging Templates - n/a n/a Yes n/a
Music
Headphone Jack (3.5mm) - Yes - - Yes
Music Player - n/a n/a Yes n/a
Photo & Video
TV Output - - Yes - -
Power
Fast Charging - Yes Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm Yes n/a n/a Yes n/a
Calculator - n/a n/a Yes n/a
Calendar Yes n/a n/a Yes n/a
Voice Memo Yes n/a n/a - n/a
Software
BREW - n/a n/a Yes n/a
Games - n/a n/a Yes n/a
Java (J2ME) Yes n/a n/a - n/a
Voice
HD Voice - Yes Yes - Yes
Headset Jack (2.5 mm) Yes n/a n/a Yes n/a
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Motorola i85s / i88s Samsung Galaxy A21 Samsung Galaxy Z Flip Samsung Renown U810 AT&T Calypso
  X > < X > < X > < X > < X

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

 
Phone Motorola i85s / i88s Samsung Galaxy A21 Samsung Galaxy Z Flip Samsung Renown U810 AT&T Calypso

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