vivo Y55s (2017)
#5123
vivo Y81i
#5122Category Breakdown
vivo Y55s (2017)
vivo Y81i
Performance
54.354.3
Camera
42.442.4
Display
70.570.5
Battery
43.543.5
Build
79.879.8
Overall
55.555.5
Summary
- The vivo Y55s (2017) features a 5.2-inch IPS LCD display with a resolution of 720 x 1280 pixels, while the vivo Y81i has a larger 6.22-inch IPS LCD with a resolution of 720 x 1520 pixels, offering a more modern aspect ratio.
- In terms of performance, the Y81i is powered by a more efficient Mediatek Helio A22 chipset with a higher clock speed compared to the Snapdragon 425 in the Y55s.
- Both devices have a 13 MP rear camera and 5 MP front camera, but the Y81i includes PDAF for faster focusing.
- The Y81i also has a larger battery capacity at 3260 mAh compared to the Y55s's 2730 mAh.
- Regarding software, the Y55s runs on Android 6.0 Marshmallow, while the Y81i is equipped with Android 8.1 Oreo, providing a more updated software experience.
- Build quality differs as well, with the Y55s utilizing an aluminum frame and back, while the Y81i has a plastic back and frame, although it features Gorilla Glass on the front.
Side-by-side Specification Comparison
vivo Y55s (2017)
vivo Y81i
General
Release Date
2017
2018
Announced
2017
2018
Description
N/A
N/A
Display
Size
5.2"
6.22"
Type
IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~282 ppi density)
720 x 1520 pixels, 19:9 ratio (~270 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass
Performance
Chipset
Qualcomm MSM8917 Snapdragon 425 (28 nm)
Mediatek MT6761 Helio A22 (12 nm)
CPU
Quad-core 1.4 GHz Cortex-A53
Quad-core 2.0 GHz Cortex-A53
GPU
Adreno 306
PowerVR GE8320
Memory
16GB 2GB RAM, 16GB 3GB RAM
16GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP
13 MP
Main Camera Details
13 MP, f/2.2, AF
13 MP, f/2.2, PDAF
Front Camera
5 MP
5 MP
Front Camera Details
5 MP, f/2.2
5 MP, f/2.2
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
2730 mAh
3260 mAh
Battery Details
Li-Ion 2730 mAh, non-removable
3260 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
147.9 x 72.9 x 7.5 mm (5.82 x 2.87 x 0.30 in)
155.1 x 75 x 7.8 mm (6.11 x 2.95 x 0.31 in)
Weight
142 g
143 g
Materials
Glass front, aluminum back, aluminum frame
Glass front (Gorilla Glass), plastic back, plastic frame
Water Resistance
N/A
N/A
Colors
Crown Gold, Rose Gold, Space Gray
Black, Red
Foldable
✗
✗
Connectivity
SIM
Nano-SIM + Micro-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 21.1/5.76 Mbps, LTE (2CA) Cat7 300/150 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
4.2, A2DP, LE
5.0, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, GLONASS, BDS
Software
Operating System
Android 6 (Marshmallow), Funtouch 3
Android 8.1 (Oreo), Funtouch 4
OS Version
Android 6 (Marshmallow), Funtouch 3
Android 8.1 (Oreo), Funtouch 4
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Accelerometer, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes