Nokia Lumia 638
#5631
vivo Y15S (2015)
#6087Category Breakdown
Nokia Lumia 638
vivo Y15S (2015)
Performance
43.341.7
Camera
39.619.1
Display
54.454.4
Battery
17.718.0
Build
0.217.5
Connectivity
44.634.1
Audio
8.98.9
Overall
27.025.2
Summary
- The Nokia Lumia 638 and vivo Y15S (2015) both feature a 4.5-inch IPS LCD display with a resolution of 480 x 854 pixels, providing similar visual quality.
- In terms of performance, the Lumia is powered by a Qualcomm Snapdragon 400 chipset with a 1.2 GHz CPU, while the Y15S uses a Mediatek MT6580 with a slightly faster 1.3 GHz CPU, although both have 1GB of RAM.
- The camera specifications are identical with a 5 MP rear camera, but the Y15S offers a 2 MP front camera for selfies, whereas the Lumia lacks a front camera.
- The Y15S has a slightly larger 1900 mAh battery compared to the Lumia's 1830 mAh, potentially offering better endurance.
- The Lumia runs on Microsoft Windows Phone 8.1, while the Y15S operates on Android 5.1, providing different software experiences.
- Both devices lack advanced build materials and water resistance features.
Side-by-side Specification Comparison
Nokia Lumia 638
vivo Y15S (2015)
General
Release Date
2014
2015
Announced
2014
2015
Description
N/A
N/A
Display
Size
4.5"
4.5"
Type
IPS LCD
IPS LCD
Resolution
480 x 854 pixels, 16:9 ratio (~218 ppi density)
480 x 854 pixels, 16:9 ratio (~218 ppi density)
PPI
480
480
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Qualcomm Snapdragon 400 (28 nm)
Mediatek MT6580 (28 nm)
CPU
Quad-core 1.2 GHz Cortex-A7
Quad-core 1.3 GHz Cortex-A7
GPU
Adreno 305
Mali-400MP2
Memory
8GB 1GB RAM
8GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
5 MP, 1/4.0", AF
5 MP, AF
Main Camera Features
Panorama
LED flash, HDR, panorama
Front Camera
N/A
2 MP
Front Camera Features
N/A
N/A
Video Recording
Yes
1080p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
1830 mAh
1900 mAh
Battery Details
Li-Ion 1830 mAh, removable (BL-5H)
1900 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
129.5 x 66.7 x 9.2 mm (5.10 x 2.63 x 0.36 in)
131.4 x 66.2 x 9 mm (5.17 x 2.61 x 0.35 in)
Weight
136 g
130 g
Materials
N/A
N/A
Colors
Black
White, Black
Foldable
✗
✗
SAR
N/A
0.62 W/kg (head) 0.59 W/kg (body)
Connectivity
SIM
Micro-SIM
Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / HSPA / LTE
GSM / HSPA
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA
5G
✗
✗
4G
✓
✗
WiFi
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
4.0, A2DP, LE/ aptX after WP8 Denim update
4.0, A2DP, EDR
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Microsoft Windows Phone 8.1
Android 5.1 (Lollipop)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
Accelerometer, proximity, compass