Oppo A77 (2017)
#3724
Xiaomi Mi 4i
#4040Category Breakdown
Oppo A77 (2017)
Xiaomi Mi 4i
Performance
62.560.3
Camera
42.442.4
Display
70.570.5
Battery
43.543.5
Build
79.879.8
Overall
58.057.3
Summary
- The Oppo A77 (2017) features a larger 5.5-inch IPS LCD display with a resolution of 1080 x 1920 pixels, while the Xiaomi Mi 4i has a 5.0-inch display with the same resolution but a higher pixel density of approximately 441 ppi.
- In terms of performance, the A77 is powered by the Snapdragon 625 chipset with 4GB of RAM, offering better multitasking capabilities compared to the Mi 4i's Snapdragon 615 and 2GB of RAM.
- Both phones have a 13 MP rear camera, but the A77 has a 16 MP front camera, significantly enhancing selfie quality.
- The A77's battery capacity is slightly higher at 3200 mAh compared to the Mi 4i's 3120 mAh, although the latter supports faster charging at 10W.
- Build quality differs as the A77 has an aluminum body, while the Mi 4i uses a plastic frame, and the A77 runs on Android 7.1 with ColorOS, offering a more updated software experience compared to the Mi 4i's Android 5.0.
Side-by-side Specification Comparison
Oppo A77 (2017)
Xiaomi Mi 4i
General
Release Date
2017
2015
Announced
2017
2015
Description
N/A
N/A
Display
Size
5.5"
5"
Type
IPS LCD
IPS LCD
Resolution
1080 x 1920 pixels, 16:9 ratio (~401 ppi density)
1080 x 1920 pixels, 16:9 ratio (~441 ppi density)
PPI
1080
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
Corning scratch-resistant glass
Performance
Chipset
Qualcomm MSM8953 Snapdragon 625 (14 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
Adreno 506
Adreno 405
Memory
64GB 4GB RAM
16GB 2GB RAM, 32GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (uses shared SIM 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
16 MP
5 MP
Front Camera Details
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
5 MP, f/1.8
Video Recording
1080p@30fps
1080p@30fps, 480p@120fps
Selfie Video
1080p@30fps
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
3200 mAh
3120 mAh
Battery Details
Li-Ion 3200 mAh, non-removable
Li-Ion 3120 mAh, non-removable
Charging Details
N/A
10W wired, QC1
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
153.3 x 75.9 x 7.4 mm (6.04 x 2.99 x 0.29 in)
138.1 x 69.6 x 7.8 mm (5.44 x 2.74 x 0.31 in)
Weight
148 g
130 g
Materials
Glass front, aluminum back, aluminum frame
Glass front (Gorilla Glass), plastic back, plastic frame
Water Resistance
N/A
N/A
Colors
Gold, Rose Gold, Black
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 a/b/g/n, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
Bluetooth
4.2, A2DP
4.1, A2DP
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS
Software
Operating System
Android 7.1 (Nougat), ColorOS 3.1
Android 5.0.2 (Lollipop), MIUI 8.2
OS Version
Android 7.1 (Nougat), ColorOS 3.1
Android 5.0.2 (Lollipop), MIUI 8.2
Security
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (front-mounted), accelerometer, proximity, compass
Accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes