Walton Primo EF3 - Technical characteristics and specifications

Primo EF3 technical characteristics

About the device:

Walton Primo EF3 is a mobile/cell phone with dimensions of 72.7 mm (millimeters), 7.27 cm (centimeters), 0.24 ft (feet), 2.86 in (inches), and a screen resolution of 480 x 854 pixels.

It has a processor ARM Cortex-A7, a 1 GB RAM memory and an internal memory of 8 GB (gigabytes) expandable by memory card microSD, microSDHC .

The Walton Primo EF3 comes from the factory with the Android 4.4.2 KitKat operating system.

Technical information

Property	Value
Brand	Walton
Model	Primo EF3

Connectivity
2G connectivity	GSM 850 MHz, GSM 900 MHz, GSM 1800 MHz, GSM 1900 MHz
3G connectivity	W-CDMA 2100 MHz
4G connectivity	LTE 1800 MHz, LTE 2100 MHz, LTE 2600 MHz, LTE-TDD 2300 MHz (B40), LTE-TDD 2600 MHz (B38)
5G connectivity	No

Body
Dimensions	72.7 mm (millimeters), 7.27 cm (centimeters), 0.24 ft (feet), 2.86 in (inches)
Height	142 mm (millimeters), 14.2 cm (centimeters), 0.47 ft (feet), 5.59 in (inches)
Thickness	9.4 mm (millimeters), 0.94 cm (centimeters), 0.03 ft (feet), 0.37 in (inches)
Volume	97.04 cm
SIM	2
Number of SIMS	Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)
Colors	Black, White
Body materials	Plastic
Certifications	IP68 (See other devices with IP68)

Screen
Type of screen	TFT
Screen resolution	480 x 854 pixels
Display width	2.45 in (inches), 62.23 mm (millimeters), 6.22 cm (centimeters)
Display height	4.36 in (inches), 110.71 mm (millimeters), 11.07 cm (centimeters)
Aspect ratio	1.779:1
Pixel density	196 ppi (pixels per inch), 77 ppcm (pixels per centimeter)
Color depth	24 bit, 16777216 colors
Display area	66.95 % (percent)
Crystal	Corning Gorilla Glass 3

Platform
OS	Android 4.4.2 KitKat
CPU	ARM Cortex-A7
SoC	Spreadtrum SC7731G
Technology	28 nm (nanometers)
Bits	32 bit
Instruction set	ARMv7
Cores	32 KB + 32 KB (kilobytes)
CPU Frequency	512 KB (kilobytes), 0.5 MB (megabytes)

Storage and memory
Memory card	microSD, microSDHC
Internal memory	8 GB (gigabytes)
RAM	1 GB
RAM type	2
RAM channels	400 MHz (megahertz)

Cameras
Sensor model	CMOS (complementary metal-oxide semiconductor)
Sensor type	LED
Sensor size	2592 x 1944 pixels, 5.04 MP (megapixels)
Sensor Pixel size	1920 x 1080 pixels, 2.07 MP (megapixels)
Aperture	Autofocus, Continuous shooting, Digital zoom, Digital image stabilization, Geotagging, Panorama, HDR, Touch focus, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode
Resolution	6-element lens, Sapphire crystal glass lens cover, OIS 2.0
Video Resolution	Phase detection
FPS	Autofocus, Continuous shooting, Digital zoom, Geotagging, Panorama, HDR, Touch focus, Face detection, White balance settings, ISO settings, Exposure compensation, Self-timer, Scene mode
Video features	Phase detection, Interpolated resolution - 16 MP, Secondary rear camera - 5 MP
Aperture secondary camera	640 x 480 pixels, 0.31 MP (megapixels)
Resolution secondary camera	1920 x 1080 pixels, 2.07 MP (megapixels)
Video resolution secondary camera	30 fps (frames per second)
FPS video secondary camera	Autofocus
Audio connector	Yes

Communications
WLAN	802.11b (IEEE 802.11b-1999), 802.11g (IEEE 802.11g-2003), 802.11n (IEEE 802.11n-2009), Wi-Fi Hotspot
Bluetooth	4.0
GPS	GPS, A-GPS
Radio	Yes
USB	Micro USB
Sensors	Proximity, Light, Accelerometer