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vivo X21 UD Full Specifications

Brand and model

Brand : Vivo
Model : X21 UD

Design

Width : 74.78 mm (millimeters), 7.478 cm (centimeters), 0.245 ft (feet), 2.944 in (inches)
Height : 154.45 mm (millimeters), 15.445 cm (centimeters), 0.507 ft (feet), 6.081 in (inches)
Thickness : 7.37 mm (millimeters), 0.737 cm (centimeters), 0.024 ft (feet), 0.29 in (inches)
Weight : 156 g (grams), 0.34 lbs (pounds), 5.51 oz (ounces)
Volume : 85.12 cm³ (cubic centimeters), 5.17 in³ (cubic inches)
Colors : Black, Red, White
Body materials : Aluminium alloy

SIM card

SIM card type : Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm), Nano-SIM / microSD
Number of SIM cards : 2

Networks

GSM : GSM 850 MHz, GSM 900 MHz, GSM 1800 MHz, GSM 1900 MHz
CDMA : CDMA 800 MHz
TD-SCDMA : TD-SCDMA 1880-1920 MHz, TD-SCDMA 2010-2025 MHz
UMTS : UMTS 850 MHz, UMTS 900 MHz, UMTS 1900 MHz, UMTS 2100 MHz
LTE : LTE 850 MHz, LTE 900 MHz, LTE 1700/2100 MHz, LTE 1800 MHz, LTE 1900 MHz, LTE 2100 MHz, LTE 2600 MHz, LTE-TDD 1900 MHz (B39), LTE-TDD 2300 MHz (B40), LTE-TDD 2500 MHz (B41), LTE-TDD 2600 MHz (B38)

Mobile network technologies and bandwidth

Mobile network technologies : UMTS (384 kbit/s ), EDGE, GPRS, HSPA+, LTE Cat 12 (102.0 Mbit/s , 603.0 Mbit/s ), EV-DO Rev. A (1.8 Mbit/s , 3.1 Mbit/s ), TD-SCDMA, TD-HSDPA

Operating system

Operating system (OS) : Funtouch 4.0 OS (Android 8.1 Oreo), Funtouch OS (Android 9.0 Pie)

System on Chip (SoC)

SoC : Qualcomm Snapdragon 660 MSM8976 Plus
Process technology : 14 nm (nanometers)
CPU : 4x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260
CPU bits : 64 bit
Instruction set : ARMv8
CPU cores : 8
CPU frequency : 2200 MHz (megahertz)
GPU : Qualcomm Adreno 512
RAM capacity : 6 GB (gigabytes)
RAM type : LPDDR4X
RAM channels : Double channel
RAM frequency : 1866 MHz (megahertz)

Storage

Storage : 64 GB (gigabytes), 128 GB (gigabytes)

Memory cards

Types : microSD, microSDHC, microSDXC

Display

Type/technology : Super AMOLED
Diagonal size : 6.28 in (inches), 159.51 mm (millimeters), 15.95 cm (centimeters)
Width : 2.69 in (inches), 68.28 mm (millimeters), 6.83 cm (centimeters)
Height : 5.68 in (inches), 144.16 mm (millimeters), 14.42 cm (centimeters)
Aspect ratio : 2.111:1
Resolution : 1080 x 2280 pixels
Pixel density : 402 ppi (pixels per inch), 158 ppcm (pixels per centimeter)
Color depth : 24 bit, 16777216 colors
Display area : 85.5 % (percent)
Other features : Capacitive, Multi-touch, Scratch resistant
: Corning Gorilla Glass 3

Sensors

Sensors : Proximity, Light, Accelerometer, Compass, Gyroscope, Fingerprint
: Fingerprint sensor model - Synaptics FS9500 Clear ID / Goodix (In-display fingerprint sensor)

Rear camera

Sensor model : Samsung S5K2L9
Sensor type : ISOCELL
Sensor format : 1/2.6"
Pixel size : 1.4 µm (micrometers), 0.001400 mm (millimeters)
Aperture : f/1.8
Flash type : LED
Image resolution : 4032 x 3024 pixels, 12.19 MP (megapixels)
Video resolution : 1920 x 1080 pixels, 2.07 MP (megapixels)
Video FPS : 30 fps (frames per second)
Features : Autofocus, Continuous shooting, Digital zoom, Optical image stabilization, Geotagging, Panorama, HDR, Touch focus, Face detection, White balance settings, ISO settings, Exposure compensation, Self-timer, Scene mode, Phase detection autofocus (PDAF)
: Phase detection with Dual Pixel, Dual-core DSP (256 MB), Secondary rear camera - 5 MP, Sensor model - Samsung S5K4E8 (#2), Sensor type - CMOS BSI (#2), Sensor size - 1/4" (#2), Pixel size - 1.4 μm (#2), Aperture size - f/2.4 (#2)

Front camera

Sensor model : Samsung S5K2L8
Sensor type : CMOS (complementary metal-oxide semiconductor)
Pixel size : 1.29 µm (micrometers), 0.001290 mm (millimeters)
Aperture : f/2
Image resolution : 4032 x 3024 pixels, 12.19 MP (megapixels)
Video resolution : 1920 x 1080 pixels, 2.07 MP (megapixels)
Video FPS : 30 fps (frames per second)
Features : Face unlock

Audio

Speaker : Loudspeaker, Earpiece
: Asahi Kasei AK4376A

Radio

Radio : No

Tracking/Positioning

Tracking/Positioning : GPS, A-GPS, GLONASS, BeiDou

Wi-Fi

Wi-Fi : 802.11a (IEEE 802.11a-1999), 802.11b (IEEE 802.11b-1999), 802.11g (IEEE 802.11g-2003), 802.11n (IEEE 802.11n-2009), 802.11n 5GHz, 802.11ac (IEEE 802.11ac), Dual band, Wi-Fi Hotspot, Wi-Fi Direct
: 2x2 MiMO

Bluetooth

Version : 5.0
Features : A2DP (Advanced Audio Distribution Profile)

USB

Connector type : Micro USB
Version : 2.0
Features : Charging, Mass storage, On-The-Go

Headphone jack

Headphone jack : Yes

Connectivity

Connectivity : Computer sync, OTA sync, Tethering, VoLTE

Browser

Browser : HTML, HTML5, CSS 3

Audio file formats/codecs

Audio file formats/codecs : AAC (Advanced Audio Coding), AAC+ / aacPlus / HE-AAC v1, AMR / AMR-NB / GSM-AMR (Adaptive Multi-Rate, .amr, .3ga), AMR-WB (Adaptive Multi-Rate Wideband, .awb), 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), DivX (.avi, .divx, .mkv), Flash Video (.flv, .f4v, .f4p, .f4a, .f4b), H.263, H.264 / MPEG-4 Part 10 / AVC video, MKV (Matroska Multimedia Container, .mkv .mk3d .mka .mks), MP4 (MPEG-4 Part 14, .mp4, .m4a, .m4p, .m4b, .m4r, .m4v), WebM, WMV (Windows Media Video, .wmv), Xvid

Battery

Capacity : 3200 mAh (milliampere-hours)
Type : Li-Polymer
Charger output power : 5 V (volts) / 2 A (amps), 9 V (volts) / 2 A (amps)
Features : Fast charging, Non-removable

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