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AT&T Z331 vs Sonim XP3340 Sentinel

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AT&T Z331

Also known as ZTE Z331 User Rating - 8

Posted: 14 Oct 2011
Market Status: Released US carrier availability: AT&T - Discontinued

Sonim XP3340 Sentinel

Posted: 12 Aug 2011
Market Status: Released

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Design
Device type	Feature phone	Feature phone
Form factor	Clamshell	Candybar
Dimensions	3.86 x 2.03 x 0.67 inches (98 x 52 x 17 mm)	4.96 x 2.36 x 0.98 inches (126 x 60 x 25 mm)
Weight	3.17 oz (90 g) the average is 4.4 oz (127 g)	6.53 oz (185 g) the average is 4.4 oz (127 g)
Design features	Numeric keypad, Soft keys, D-Pad (2)	Numeric keypad, Soft keys (2)
Rugged		Water (Water), Dust, Shock, Vibration, Temperature proof
IP certified		IP 68.00
MIL-STD-810 certified		Yes

Display
Physical size	2.4 inches	2.0 inches
Resolution	240 x 320 pixels	240 x 320 pixels
Pixel density Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.	167 ppi	200 ppi
Technology Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.	TFT
Colors	262 144
Features		Scratch-resistant glass (Corning Gorilla Glass)
Additional display Additional display - Shows specs of the phone's additional display	Color, OLED
Resolution Resolution - Refers to the width and the length od the additional display	128 x 128 pixels
Physical Size	1.46 inches

Battery
Talk time	3.00 hours the average is 11 h (647 min)	24.00 hours the average is 11 h (647 min)
Stand-by time	8.3 days (200 hours) the average is 18 days (441 h)	33.3 days (800 hours) the average is 18 days (441 h)
GPS usage		29.00 hours
Capacity	950 mAh	1750 mAh
Type	Li - Ion

Hardware
Built-in storage	0.14 GB
Storage expansion	microSD, microSDHC up to 8 GB	microSD, microSDHC

Camera
Camera	3 megapixels	2 megapixels
Flash		LED
Camcorder	Other, 176 x 144 pixels

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Multimedia
Music player
Supported formats	MP3, AAC+	MP3
Video playback
Supported formats	MPEG4, H.263, H.264
Radio	FM
Speakers		Earpiece, Loudspeaker

Internet browsing
Browser	Opera Mini
supports	XHTML, WAP, CSS	XHTML, WAP 2.0

Technology
GSM	850, 900, 1800, 1900 MHz	850, 900, 1800, 1900 MHz
UMTS	850, 1900, 2100 MHz
Data	HSDPA 3.6 Mbit/s, UMTS, EDGE	EDGE
Global Roaming	Yes	Yes
Positioning Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.		GPS, A-GPS

Phone features
Organizer	Calendar, Alarm, Calculator	Calendar, Alarm, Flashlight
Messaging	SMS, MMS, Predictive text input	SMS (3000 messages), MMS
E-mail	IMAP, POP3, SMTP
Instant Messaging	Yes
JAVA JAVA - J2ME (Java 2 Platform, Micro Edition) is a technology that allows programmers to use the Java programming language and related tools to develop programs for mobile wireless information devices such as cellular phones and personal digital assistants (PDAs). J2ME consists of programming specifications and a special virtual machine, the K Virtual Machine, that allows a J2ME-encoded program to run in the mobile device.	Midp 2.0, CLDC 1.1	Midp 2.0, CLDC 1.1

Connectivity
Bluetooth	2.0	2.1, EDR
Profiles		Dial-up networking (DUN), Handsfree (HFP), Headset (HSP), Object Push (OPP), Phone Book Access (PBAP), Serial Port (SPP)
USB	USB 1.1	Yes
Connector		Proprietary
Headphones connector		3.5mm
Other		Computer sync

Other features
Notifications	Vibration, Silent mode, Speakerphone	Music ringtones (MP3, MIDI), Polyphonic ringtones
Sensors		Accelerometer
Hearing aid compatibility	M3, T4
Other	TTY/TDD

Shopping information
Accessories		Electrical wall charger, Belt clip, Screwdriver, Stereo wired headset, USB cable, 3.5 mm USB adaptor

HTC Desire 200
- Announced: 5 hours ago
- OS: Android 4.0
- Hardware: Single core, 1000 MHz, 512 MB RAM
- Display: 3.5 inches, 320 x 480 pixels, Capacitive Touchscreen
- Camera 5 megapixels, 640x480 (VGA) video
- Battery: 10.9 hours of Talk Time, 693 hours of Stand-by
- Technology: GSM (850 900 1800 1900)
- Data: HSDPA 7.2 Mbit/s UMTS EDGE GPRS
Samsung Galaxy S4 Zoom
- Announced: 12 Jun 2013
- OS: Android 4.2
- Hardware: Dual core, 1500 MHz, ARM Cortex-A9, 1536 MB RAM
- Display: 4.3 inches, 540 x 960 pixels, Capacitive Touchscreen
- Camera 16 megapixels, 1920x1080 (1080p HD) 1280x720 (720p HD) video
- Technology: GSM (850 900 1800 1900)
- Data: LTE Cat3 Downlink 100 Mbit/s LTE Cat3/4 Uplink 50 Mbit/s HSDPA+ (4G) 21.1 Mbit/s UMTS EDGE GPRS
Samsung GALAXY Ace 3
- Announced: 10 Jun 2013
- OS: Android 4.2
- Hardware: Dual core, 1200 MHz, 1024 MB RAM
- Display: 4.0 inches, 480 x 800 pixels, Capacitive Touchscreen
- Camera 5 megapixels, 1920x1080 (1080p HD) 1280x720 (720p HD) video
- Data: LTE Cat4 Downlink 150 Mbit/s LTE Cat3/4 Uplink 50 Mbit/s HSDPA+ (4G) 42.2 Mbit/s
ZTE Vital
- Announced: 10 Jun 2013
- OS: Android 4.1.2
- Hardware: Dual core, 1500 MHz, Krait, 1024 MB RAM
- Display: 5.0 inches, 720 x 1280 pixels
- Camera 13 megapixels
- Technology: CDMA (800 1900)
- Data: LTE
Nokia EOS
- Posted: 05 Jun 2013
- OS: Windows Phone 8
- Display: 4.5 inches, 768 x 1280 pixels, Capacitive Touchscreen
- Camera 41 megapixels
LG Optimus L4 II
- Posted: 05 Jun 2013
- OS: Android 4.1
- Hardware: Single core, 1000 MHz, ARM Cortex-A9, 512 MB RAM
- Display: 3.8 inches, 320 x 480 pixels, Capacitive Touchscreen
- Camera 3 megapixels
- Technology: GSM (850 900 1800 1900)
- Data: HSDPA 7.2 Mbit/s HSUPA 5.76 Mbit/s EDGE GPRS
Samsung Galaxy S4 Active
- Announced: 05 Jun 2013
- OS: Android 4.2.2
- Hardware: Quad core, 1900 MHz, Krait 300, 2048 MB RAM
- Display: 5.0 inches, 1080 x 1920 pixels, Capacitive Touchscreen
- Camera 8 megapixels, 1920x1080 (1080p HD) video
- Technology: GSM (850 900 1800 1900)
- Data: LTE Cat3 Downlink 100 Mbit/s LTE Cat3/4 Uplink 50 Mbit/s HSDPA+ (4G) 42.2 Mbit/s HSUPA 5.76 Mbit/s UMTS EDGE GPRS
Sony Xperia M
- Announced: 04 Jun 2013
- OS: Android 4.1
- Hardware: Dual core, 1000 MHz, Krait, 1024 MB RAM
- Display: 4.0 inches, 480 x 854 pixels, Capacitive Touchscreen
- Camera 5 megapixels, 1280x720 (720p HD) video
- Battery: 10.3 hours of Talk Time, 552 hours of Stand-by
- Technology: GSM (850 900 1800 1900)
- Data: HSPA (unspecified) UMTS EDGE GPRS