Brand and model
Brand : DigmaModel : Citi Z540 4G
Model alias : CT5009PL
Design
Width : 76.5 mm (millimeters), 7.65 cm (centimeters), 0.251 ft (feet), 3.012 in (inches)Height : 155 mm (millimeters), 15.5 cm (centimeters), 0.509 ft (feet), 6.102 in (inches)
Thickness : 8.8 mm (millimeters), 0.88 cm (centimeters), 0.029 ft (feet), 0.346 in (inches)
Weight : 166 g (grams), 0.37 lbs (pounds), 5.86 oz (ounces)
Volume : 104.35 cm³ (cubic centimeters), 6.34 in³ (cubic inches)
Colors : Black, White
Body materials : Plastic
SIM card
SIM card type : Micro-SIM (3FF - third form factor, since 2003, 15.00 x 12.00 x 0.76 mm)Number of SIM cards : 2
Features : Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)
Networks
GSM : GSM 850 MHz, GSM 900 MHz, GSM 1800 MHz, GSM 1900 MHzUMTS : UMTS 850 MHz, UMTS 900 MHz, UMTS 1700/2100 MHz, UMTS 1900 MHz, UMTS 2100 MHz
LTE : LTE 700 MHz Class 17, LTE 850 MHz, LTE 1700/2100 MHz, LTE 1900 MHz, LTE 2100 MHz, LTE 2600 MHz, LTE 700 MHz (B12)
Mobile network technologies and bandwidth
Mobile network technologies : UMTS (384 kbit/s ), EDGE, GPRS, HSPA+ (HSUPA 5.76 Mbit/s , HSDPA 42 Mbit/s ), LTE Cat 4 (51.0 Mbit/s , 150.8 Mbit/s )Operating system
Operating system (OS) : Android 5.1 LollipopSystem on Chip (SoC)
SoC : Spreadtrum SC9830AProcess technology : 28 nm (nanometers)
CPU : ARM Cortex-A53
CPU bits : 32 bit
Instruction set : ARMv7
Level 2 cache memory (L2) : 512 KB (kilobytes), 0.5 MB (megabytes)
CPU cores : 4
CPU frequency : 1000 MHz (megahertz)
GPU : ARM Mali-400 MP2
GPU cores : 1
GPU frequency : 400 MHz (megahertz)
RAM capacity : 1 GB (gigabytes)
RAM type : LPDDR3
RAM channels : Single channel
Storage
Storage : 16 GB (gigabytes)Memory cards
Types : microSD, microSDHC, microSDXCDisplay
Type/technology : IPSDiagonal size : 5.5 in (inches), 139.7 mm (millimeters), 13.97 cm (centimeters)
Width : 3.55 in (inches), 90.05 mm (millimeters), 9 cm (centimeters)
Height : 4.2 in (inches), 106.81 mm (millimeters), 10.68 cm (centimeters)
Aspect ratio : 1.186:1
Resolution : 720 x 854 pixels
Pixel density : 203 ppi (pixels per inch), 79 ppcm (pixels per centimeter)
Color depth : 24 bit, 16777216 colors
Display area : 81.37 % (percent)
Other features : Capacitive, Multi-touch, Scratch resistant
: Tempered glass
Sensors
Sensors : Proximity, Light, AccelerometerRear camera
Sensor type : CMOS (complementary metal-oxide semiconductor)Flash type : LED
Image resolution : 4128 x 3096 pixels, 12.78 MP (megapixels)
Video resolution : 1280 x 720 pixels, 0.92 MP (megapixels)
Video FPS : 30 fps (frames per second)
Features : Autofocus, Continuous shooting, Digital zoom, Digital image stabilization, Geotagging, Panorama, HDR, Touch focus, Face detection, White balance settings, ISO settings, Exposure compensation, Self-timer, Scene mode
Front camera
Image resolution : 640 x 2448 pixels, 1.57 MP (megapixels)Video resolution : 640 x 1080 pixels, 0.69 MP (megapixels)
Video FPS : 30 fps (frames per second)
Audio
Speaker : Loudspeaker, EarpieceRadio
Radio : YesTracking/Positioning
Tracking/Positioning : GPS, A-GPSWi-Fi
Wi-Fi : 802.11b (IEEE 802.11b-1999), 802.11g (IEEE 802.11g-2003), 802.11n (IEEE 802.11n-2009), Wi-Fi Hotspot, Wi-Fi DirectBluetooth
Version : 4.0Features : A2DP (Advanced Audio Distribution Profile)
USB
Connector type : Micro USBVersion : 2.0
Features : Charging, Mass storage
Headphone jack
Headphone jack : YesConnectivity
Connectivity : Computer sync, OTA sync, TetheringBrowser
Browser : HTML, HTML5, CSS 3Audio file formats/codecs
Audio file formats/codecs : AAC (Advanced Audio Coding), AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga), eAAC+ / aacPlus v2 / HE-AAC v2, FLAC (Free Lossless Audio Codec, .flac), MIDI, MP3 (MPEG-2 Audio Layer II, .mp3), OGG (.ogg, .ogv, .oga, .ogx, .spx, .opus), WMA (Windows Media Audio, .wma), WAV (Waveform Audio File Format, .wav, .wave)Video file formats/codecs
Video file formats/codecs : 3GPP (3rd Generation Partnership Project, .3gp), AVI (Audio Video Interleaved, .avi), MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks), MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v), WMV (Windows Media Video, .wmv), XvidBattery
Capacity : 2500 mAh (milliampere-hours)Type : Li-Ion
2G talk time : 9 h (hours), 540 min (minutes), 0.4 days
2G stand-by time : 288 h (hours), 17280 min (minutes), 12 days
3G talk time : 9 h (hours), 540 min (minutes), 0.4 days
3G stand-by time : 600 h (hours), 36000 min (minutes), 25 days
Features : Removable
Specific Absorption Rate (SAR)
Head SAR (USA) : 0.35 W/kg (watts per kilogram)Body SAR (USA) : 1.29 W/kg (watts per kilogram)
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