Oppo A91

Brand and model

Brand	Oppo
Model	A91
Model alias	PCPM00 PCPT00

Design

Width	73.3 mm 7.33 cm 0.24 ft 2.89 in
Height	160.2 mm 16.02 cm 0.53 ft 6.31 in
Thickness	7.9 mm 0.79 cm 0.03 ft 0.31 in
Weight	172 g 0.38 lbs 6.07 oz
Volume	92.77 cm³ 5.63 in³
Colors	Dark Knight Modern Bright Red White-Blue-Purple gradient
Body materials	Glass 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
Features	Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)

Networks

GSM	GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2)
CDMA	CDMA 800 MHz (BC0)
W-CDMA	W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 2100 MHz (B1)
TD-SCDMA	TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz
LTE	LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41)

Mobile network technologies and bandwidth

Mobile network technologies

EDGE GPRS HSPA+ LTE TD-SCDMA

Operating system

Operating system (OS)

ColorOS 6.1 (Android 9.0 Pie)

System on Chip (SoC)

SoC	MediaTek Helio P70 (MT6771V/CT)
Process technology	12 nm
CPU	4x 2.1 GHz ARM Cortex-A73, 4x 2.0 GHz ARM Cortex-A53
CPU bits	64 bit
Instruction set	ARMv8-A
CPU cores	8
CPU frequency	2100 MHz
GPU	ARM Mali-G72 MP3
GPU cores	3
GPU frequency	900 MHz
RAM capacity	8 GB
RAM type	LPDDR4X
RAM channels	Double channel
RAM frequency	1866 MHz
	Game Boost 2.0

Storage

Storage

128 GB

Memory cards

Types

microSD microSDHC microSDXC

Display

Type/technology	AMOLED
Diagonal size	6.4 in 162.56 mm 16.26 cm
Width	2.63 in 66.71 mm 6.67 cm
Height	5.84 in 148.24 mm 14.82 cm
Aspect ratio	2.222:1
Resolution	1080 x 2400 pixels
Pixel density	411 ppi 161 ppcm
Color depth	24 bit 16777216 colors
Display area	84.49 %
Other features	Capacitive Multi-touch Scratch resistant

Sensors

Sensors	Proximity Light Accelerometer Compass Gyroscope Fingerprint Gravity
	In-display fingerprint sensor

Rear camera

Pixel size	0.8 µm (micrometers) 0.000800 mm
Aperture	f/1.8
Flash type	Dual LED
Image resolution	8000 x 6000 pixels 48 MP
Video resolution	3840 x 2160 pixels 8.29 MP
Video FPS	30 fps
Features	Autofocus Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF)
	Pixel size — 1.6 μm (4-in-1 pixel binning) 6-element lens Secondary rear camera — 8 MP (ultra-wide angle) Angle of view — 119° (#2) 5-element lens (#2) Third rear camera — 2 MP (macro) 3-element lens (#3) Fourth rear camera — 2 MP (depth-sensing) 3-element lens (#4)

Front camera

Aperture	f/2
Image resolution	4608 x 3456 pixels 15.93 MP
Video resolution	1920 x 1080 pixels 2.07 MP
Video FPS	30 fps

Audio

Speaker

Loudspeaker Earpiece

Radio

Radio

Yes

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 Wi-Fi Display

Bluetooth

Version	5.0
Features	A2DP (Advanced Audio Distribution Profile) LE (Low Energy)

USB

Connector type	USB Type-C
Version	2.0
Features	Charging Mass storage On-The-Go

Headphone jack

Headphone jack

Yes

Connectivity

Connectivity

Computer 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	4025 mAh
Type	Li-Polymer
Charger output power	5 V / 4 A
Quick charge technology	VOOC 3.0
Features	Fast charging Non-removable