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Phone Casio Exilim C721 Nokia 3586i / 3588i Boost Celero5G+ (2024) Kyocera 2135
Current U.S. Carriers (none) (none) Boost (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.3" diag.
4 : 3
? 7" diag.
20.5 : 9
?
Display Resolution & Type 240 x 320 pixels
(~174 ppi)
LCD (TFT/TFD)
96 x 65 pixels
LCD (STN)
1080 x 2460 pixels
(~384 ppi)
LCD (TFT/TFD)
?
Display Refresh ? ? 120 Hz ?
Battery 920 mAh 1,000 mAh 5,000 mAh 925 mAh
Processor ? ? 2.5 GHz MediaTek Dimensity 1050 (MT6879) ?
RAM ? ? 8 GB ?
Storage ? raw hardware ? raw hardware 256 GB ? raw hardware
Main Camera 5 megapixel - 108 megapixel -
Wide Camera - - 8 megapixel -
Tele Camera - - - -
Video Capture QVGA (320 x 240) - 1080p HD -
Front Camera - - 16 megapixel -
Weight 4.48 oz
(127g)
4.11 oz
(117g)
8.25 oz
(234g)
4.7 oz
(133g)
Dimensions 4.06" x 1.97" x 0.78"
(103 x 50 x 19.9 mm)
4.6" x 1.92" x 0.94"
(117 x 49 x 23.9 mm)
7.04" x 3.12" x 0.37"
(179 x 79 x 9.4 mm)
5.07" x 1.89" x 1.02"
(129 x 48 x 25.9 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

5G: 2, 5, 25, 26, 29, 30, 41, 48, 66, 70, 71, 77-C

4G LTE: 2, 4, 5, 12, 14, 26, 29, 30, 48, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

Data Technology EVDO rA 1xRTT NR (5G) -
Features 
Barometer - - Yes -
Fingerprint Reader - - Yes
stand-alone
-
Flashlight Yes - Yes -
GPS / Location Yes Yes n/a -
Ruggedized Yes - - -
Water-Resistant Yes - Yes
IPX8 (SCUBA)
-
Accessibility
Adjustable Text Size Yes - n/a -
Hearing Aid Compatible Yes - Yes -
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes - -
Alerts
Extra Display Yes - - -
Connectivity
Bluetooth Yes
Classic Audio
- Yes
Classic Audio
-
NFC - - Yes -
USB Yes Yes Yes
USB Type C
-
Wi-Fi - - Yes
6E (802.11 a,ac,ax,b,g,n)
-
Contacts
Picture ID Yes Yes n/a -
Ringer ID Yes - n/a -
Voice Dialing Yes Yes n/a -
Customization
Changeable Body Plates - Yes - Yes
Custom Graphics Yes Yes * n/a -
Custom Ringtones Yes Yes * n/a Yes
Real-Music Ringers Yes - n/a -
Data & Network
Data Tethering Yes Yes * n/a Yes
WAP / Web Browser Yes Yes * n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes - Yes -
Touch Screen - - Yes -
Memory
Memory Card Slot Yes - Yes -
Messaging
EMS / Picture Messaging Yes - n/a -
Instant Messaging Yes - n/a -
MMS Yes - n/a -
Text Messaging Templates Yes Yes * n/a Yes
Music
FM Radio - - Yes -
Headphone Jack (3.5mm) - - Yes -
Music Player Yes - n/a -
Power
Fast Charging - - Yes -
Wireless Charging - - Yes -
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes - n/a Yes
Calendar Yes Yes n/a -
To-Do List Yes - n/a -
Voice Memo Yes Yes n/a -
Software
BREW Yes - n/a -
Games Yes Yes n/a Yes
Java (J2ME) - Yes * n/a -
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) - Yes n/a Yes
Speaker Phone Yes - Yes -
  * Some versions only
  Casio Exilim C721 Nokia 3586i / 3588i Boost Celero5G+ (2024) Kyocera 2135
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Phone Casio Exilim C721 Nokia 3586i / 3588i Boost Celero5G+ (2024) Kyocera 2135

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