Category Breakdown
vivo Y81
Xiaomi Mi 4i
Performance
60.360.3
Camera
42.442.4
Display
70.570.5
Battery
43.543.5
Build
79.879.8
Overall
57.357.3
Summary
- The vivo Y81 features a larger 6.22-inch IPS LCD display with a resolution of 720 x 1520 pixels, while the Xiaomi Mi 4i has a smaller 5.0-inch IPS LCD with a higher resolution of 1080 x 1920 pixels, resulting in a sharper display.
- In terms of performance, the Y81 is powered by the Mediatek Helio P22 chipset, whereas the Mi 4i uses the Qualcomm Snapdragon 615, which offers a different processing architecture.
- Both phones have a 13 MP rear camera, but the Mi 4i has a slightly wider aperture of f/2.0 compared to the Y81's f/2.2.
- The Y81 has a 3260 mAh battery, slightly larger than the Mi 4i's 3120 mAh, but the latter supports faster 10W charging.
- Both devices run different versions of Android, with the Y81 using Android 8.1 (Oreo) and the Mi 4i on Android 5.0.2 (Lollipop), which affects the software experience and available features.
Side-by-side Specification Comparison
vivo Y81
Xiaomi Mi 4i
General
Release Date
2018
2015
Announced
2018
2015
Description
N/A
N/A
Display
Size
6.22"
5"
Type
IPS LCD
IPS LCD
Resolution
720 x 1520 pixels, 19:9 ratio (~270 ppi density)
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
PPI
720
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Corning Gorilla Glass
Corning scratch-resistant glass
Performance
Chipset
Mediatek MT6762 Helio P22 (12 nm)
Qualcomm MSM8939 Snapdragon 615 (28 nm)
CPU
Octa-core 2.0 GHz Cortex-A53
Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
PowerVR GE8320
Adreno 405
Memory
32GB 3GB RAM, 32GB 4GB RAM
16GB 2GB RAM, 32GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
No
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP, f/2.2, PDAF
13 MP, f/2.0, AF
Front Camera
5 MP
5 MP
Front Camera Details
5 MP, f/2.2
5 MP, f/1.8
Video Recording
1080p@30fps
1080p@30fps, 480p@120fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3260 mAh
3120 mAh
Battery Details
3260 mAh, non-removable
Li-Ion 3120 mAh, non-removable
Charging Details
N/A
10W wired, QC1
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in)
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in)
Weight
146.5 g
130 g
Materials
Glass front (Gorilla Glass), plastic back, plastic frame
Glass front (Gorilla Glass), plastic back, plastic frame
Water Resistance
N/A
N/A
Colors
Black, Gold
Dark Gray, Black, White, Yellow, Blue, Pink
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Nano-SIM
Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA, LTE Cat4 150/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
5.0, A2DP, LE
4.1, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, BDS
Software
Operating System
Android 8.1 (Oreo), Funtouch 4
Android 5.0.2 (Lollipop), MIUI 8.2
OS Version
Android 8.1 (Oreo), Funtouch 4
Android 5.0.2 (Lollipop), MIUI 8.2
Security
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted) - only 4 GB model; accelerometer, proximity, compass
Accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

