vivo Y31
#2935
Xiaomi Redmi Note 9
#2244Category Breakdown
vivo Y31
Xiaomi Redmi Note 9
Performance
73.073.9
Camera
62.729.9
Display
58.972.9
Battery
33.735.9
Build
0.289.0
Connectivity
55.362.8
Audio
8.98.9
Overall
45.150.5
Summary
- The vivo Y31 features a slightly larger 6.58-inch IPS LCD display with a resolution of 1080 x 2408 pixels, while the Xiaomi Redmi Note 9 has a 6.53-inch IPS LCD with a resolution of 1080 x 2340 pixels.
- In terms of performance, the Y31 is powered by a Qualcomm Snapdragon 662 chipset, whereas the Redmi Note 9 uses a MediaTek Helio G85, both offering similar RAM options.
- Camera-wise, both devices have a 48 MP main sensor, but the Redmi Note 9 includes an additional ultrawide lens, enhancing versatility.
- The Y31 has a marginally larger 5000 mAh battery compared to the 5020 mAh in the Redmi Note 9, with both supporting 18W charging.
- For software, the Y31 runs Android 11 with Funtouch 11, while the Redmi Note 9 initially launched with Android 10 but is upgradable to Android 11 with MIUI 12.5.
- In build quality, the Redmi Note 9 incorporates Gorilla Glass 5 on the front, offering better durability compared to the plastic materials of the Y31.
Side-by-side Specification Comparison
vivo Y31
Xiaomi Redmi Note 9
General
Release Date
2021, January 20
2020, April 30
Announced
2021, January 20
2020, April 30
Description
N/A
N/A
Display
Size
6.58"
6.53"
Type
IPS LCD
IPS LCD, 450 nits (typ)
Resolution
1080 x 2408 pixels, 20:9 ratio (~401 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass 5
Performance
Chipset
Qualcomm SM6115 Snapdragon 662 (11 nm)
Mediatek MT6769Z Helio G85 (12 nm)
CPU
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU
Adreno 610
Mali-G52 MC2
Memory
64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
64GB 3GB RAM, 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
48 MP, f/1.8, (wide), 1/2.0", 0.8µm, PDAF2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF8 MP, f/2.2, 118˚ (ultrawide), 1/4.0", 1.12µm2 MP, f/2.4, (macro), AF2 MP, f/2.4, (depth)
Main Camera Features
LED flash, HDR, panorama
LED flash, HDR, panorama
Front Camera
16 MP, f/2.0, (wide), 1/3.06" 1.0µm
13 MP, f/2.3, 29mm (standard), 1/3.1", 1.12µm
Front Camera Features
HDR
HDR, panorama
Video Recording
4K@30fps, 1080p@30fps, gyro-EIS
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5000 mAh
5020 mAh
Battery Details
5000 mAh
Li-Po 5020 mAh
Charging Details
18W wired, 70% in 67 min
18W wired9W reverse wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
163.9 x 75.3 x 8.4 mm (6.45 x 2.96 x 0.33 in)
162.3 x 77.2 x 8.9 mm (6.39 x 3.04 x 0.35 in)
Weight
188 g
199 g
Materials
N/A
Glass front (Gorilla Glass 5), plastic frame, plastic back
Colors
Racing Black, Ocean Blue
Forest Green, Midnight Grey, Polar White
Foldable
✗
✗
SAR
N/A
0.84 W/kg (head) 0.90 W/kg (body)
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
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
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✗
✓
USB
USB Type-C 2.0, OTG
USB Type-C 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, GALILEO, BDS
GPS, GLONASS, GALILEO, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 11, Funtouch 11
Android 10, upgradable to Android 11, MIUI 12.5 E
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (side-mounted), accelerometer, gyro, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass