Oppo Pad Air vs Oppo A91
Comparing 2 products
Basic Information
General Overview
Device Type
Tablet
Bar
Model
OPD2102, X21N2
PCPM00
Announced
2022, May
2019, December
Released
2022, May
2019, December
Status
Available
Available
Design
Type
Bar
Bar
Dimensions
245.1 x 154.8 x 6.9 mm (9.65 x 6.09 x 0.27 in)
7.9 mm thickness
Weight
440 g (15.52 oz)
172 g (6.07 oz)
Protection
Stylus support
-
Colors
Gray, Silver
Dark Blue, Red, Blue
Network
2G Network
No
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
CDMA 800 & TD-SCDMA
3G Network
No
HSDPA 850 / 1700(AWS) / 1900 / 2100
4G Network
No
LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
5G Network
No
-
SIM
No SIM Card
Nano SIM
Dual SIM
No Line WiFi Only
Yes, Dual SIM (Nano-SIM, dual stand-by)
Display
Display Type
IPS LCD
AMOLED
Size
10.36 inches, 305.5 cm2 (~80.5% screen-to-body ratio)
6.4 inches, 98.9 cm2
Resolution
1200 x 2000 pixels
1080 x 2400 pixels
Display Colors
16M colors or less
16M colors
Pixel Density
255 ppi density
411 ppi density
Touch Screen
Yes
Capacitive Touchscreen
Media
FM Radio
No
Yes
Earphone Jack
No
Yes
Camera
Camera Set
Single Camera
Quad Cameras
Main Camera
8 MP, f/2.0
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF
Camera Video
1080p@30fps
2160p@30fps, 1080p@30fps
Features
Panorama
HDR, panorama
Selfie Set
Single Camera
Single Camera
Selfie Camera
5 MP, f/2.2
16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm
Selfie Video
1080p@30fps
1080p@30fps
2nd Camera
-
8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm
3rd Camera
-
2 MP, f/2.4, 1/5", 1.75µm (dedicated macro camera)
4th Camera
-
2 MP, f/2.4, 1/5", 1.75µm, depth sensor
Flash
-
LED Flash
Features
-
HDR
Software
OS
Android 12
Android 9.0 (Pie)
User Interface
ColorOS 12
ColorOS 6.1
Hardware
Chipset
Qualcomm SM6225 Snapdragon 680 4G (6 nm)
Mediatek MT6771V Helio P70 (12nm)
CPU
Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
Adreno 610
Mali-G72 MP3
RAM
4/6 GB
8 GB
Internal Storage
64/128 GB
128 GB
Card Slot
Yes, via microSD card
Yes, microSD, up to 256 GB (dedicated slot)
Sensors
Accelerometer, gyro, proximity
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Connectivity
Bluetooth
5.1, A2DP, LE, aptX HD
5.0, A2DP, LE, aptX HD
Wi-fi
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Wi-fi Hotspot
Yes
Yes
USB
USB Type-C 2.0, USB On-The-Go
2.0, Type-C 1.0 reversible connector, USB On-The-Go
GPS
No
Yes, with A-GPS
NFC
No
No
Data
GPRS
No
Yes
EDGE
No
Yes
Speed
No Data
HSPA 42.2/11.5 Mbps, LTE-A
Battery
Battery Type
Li-Poly (Lithium Polymer)
Li-Poly (Lithium Polymer)
Capacity
7100 mAh, Battery
4025 mAh battery
Placement
Non-removable
Non-removable
Fast Charging
Yes, 18W / USB Power Delivery
Yes, 30W: 50% in 30 min (VOOC Flash Charge 4.0)