Category Breakdown
Lava Z4
vivo Y15
Performance
72.667.2
Camera
27.919.1
Display
56.556.5
Battery
33.733.7
Build
67.983.1
Connectivity
52.154.7
Audio
8.98.9
Overall
44.742.0
Summary
- The Lava Z4 and vivo Y15 both feature a plastic frame with glass fronts, but the Z4 is slightly bulkier at 164.5 x 75.8 x 9 mm compared to the Y15's 159.4 x 76.8 x 8.9 mm.
- Both devices have 6.51" and 6.35" IPS LCD displays, respectively, with similar resolutions and 60Hz refresh rates.
- In terms of performance, the Lava Z4 uses a Mediatek Helio G35 chipset, while the vivo Y15 is powered by the Helio P22, with the Z4's CPU clocked higher.
- Both smartphones have a triple rear camera setup with 13 MP main sensors, but the Z4 has a wider aperture at f/1.9 compared to the Y15's f/2.2.
- Battery capacity is identical at 5000 mAh, but both lack fast charging and wireless capabilities.
- The Lava Z4 runs on Android 10, while the vivo Y15 operates on Android 9 with Funtouch 9.
Side-by-side Specification Comparison
Lava Z4
vivo Y15
General
Release Date
2021, January 07
2019
Announced
2021, January 07
2019, May 28
Description
N/A
N/A
Display
Size
6.51"
6.35"
Type
IPS LCD
IPS LCD
Resolution
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
720 x 1544 pixels, 19.3:9 ratio (~268 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Mediatek MT6765G Helio G35 (12 nm)
Mediatek MT6762 Helio P22 (12 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core 2.0 GHz Cortex-A53
GPU
PowerVR GE8320
PowerVR GE8320
Memory
64GB 4GB RAM
64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/1.9, (wide), 1/3.0", 1.12µm, AF5 MP, (ultrawide)2 MP, f/2.4, (depth)
13 MP, f/2.2, PDAF8 MP, f/2.2, 16mm (ultrawide)2 MP, f/2.4, (depth)
Main Camera Features
LED flash
LED flash, HDR, panorama
Front Camera
16 MP, f/2.0, (wide), 1/3.06" 1.0µm
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Front Camera Features
LED flash
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
5000 mAh
5000 mAh
Battery Details
Li-Po 5000 mAh
5000 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
164.5 x 75.8 x 9 mm (6.48 x 2.98 x 0.35 in)
159.4 x 76.8 x 8.9 mm (6.28 x 3.02 x 0.35 in)
Weight
190 g
190.5 g
Materials
Glass front, plastic back, plastic frame
Glass front, plastic back, plastic frame
Colors
Blue, Red
Aqua Blue, Burgundy Red
Foldable
✗
✗
SAR
N/A
1.01 W/kg (head) 0.75 W/kg (body)
Connectivity
SIM
Nano-SIM + Nano-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 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 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
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✗
✗
USB
USB Type-C
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, GALILEO, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10
Android 9.0 (Pie), Funtouch 9
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity
Fingerprint (rear-mounted), accelerometer, proximity, compass

