Category Breakdown
Motorola RAZR D3 XT919
Yezz Billy 4
Performance
51.354.3
Camera
42.142.1
Display
64.364.3
Battery
43.543.5
Build
70.870.8
Overall
52.453.3
Summary
- The Motorola RAZR D3 XT919 and Yezz Billy 4 both feature a 4.0-inch TFT display with a resolution of 480 x 800 pixels, offering similar visual quality.
- In terms of performance, the RAZR D3 is powered by a dual-core Mediatek MT6577T, while the Billy 4 utilizes a quad-core Qualcomm MSM8212, providing a slight edge in processing capability for the latter.
- Both devices have an 8 MP rear camera, but the Billy 4 offers a marginally better selfie camera at 1.3 MP compared to the RAZR's 1.2 MP.
- The RAZR D3 has a larger 2000 mAh battery, whereas the Billy 4 is equipped with a smaller 1300 mAh battery.
- Software-wise, the RAZR runs Android 4.1 (upgradable to 4.4.2), while the Billy 4 operates on Windows Phone 8.1, leading to differing user experiences.
- Build quality is comparable, with the RAZR being slightly heavier at 120g versus the Billy 4's 109g.
Side-by-side Specification Comparison
Motorola RAZR D3 XT919
Yezz Billy 4
General
Release Date
2013
2014
Announced
2013
2014
Description
Also available as Motorola RAZR D3 XT920 with dual-SIM card slots
N/A
Display
Size
4"
4"
Type
TFT
TFT
Resolution
480 x 800 pixels, 5:3 ratio (~233 ppi density)
480 x 800 pixels, 5:3 ratio (~233 ppi density)
PPI
480
480
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Corning Gorilla Glass
N/A
Performance
Chipset
Mediatek MT6577T (40 nm)
Qualcomm MSM8212 Snapdragon 200 (28 nm)
CPU
Dual-core 1.2 GHz Cortex-A9
Quad-core 1.2 GHz Cortex-A7
GPU
PowerVR SGX531u
Adreno 302
Memory
4GB 1GB RAM
4GB 512MB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
8 MP
8 MP
Main Camera Details
8 MP, AF
8 MP, AF
Front Camera
1.2 MP
1.3 MP
Front Camera Details
1.2 MP
1.3 MP
Video Recording
720p
720p@30fps
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
2000 mAh
1300 mAh
Battery Details
Li-Ion 2000 mAh, non-removable
Li-Ion 1300 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
119.3 x 59.8 x 9.8 mm (4.70 x 2.35 x 0.39 in)
122.5 x 64.4 x 9.9 mm (4.82 x 2.54 x 0.39 in)
Weight
120 g
109 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, White
White, Black, Red, Gun Metal, Blue, Yellow, Champing Gold
Foldable
✗
✗
Connectivity
SIM
Single SIM or Dual SIM (dual stand-by)
Dual SIM (Micro-SIM)
Network
GSM / HSPA
GSM / HSPA
Network Speed
HSPA 7.2/5.76 Mbps
HSPA 42.2/5.76 Mbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Bluetooth
4.0, LE, EDR, aptX
4.0, A2DP
NFC
✓
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS
Software
Operating System
Android 4.1 (Jelly Bean), upgradable to 4.4.2 (KitKat)
Microsoft Windows Phone 8.1
OS Version
Android 4.1 (Jelly Bean), upgradable to 4.4.2 (KitKat)
Microsoft Windows Phone 8.1
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass
Accelerometer, proximity
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

