Screen size
equal specsBilly 44.0"
GO 14.0"
Quick verdict
GO 1 leads the measured specs 5-3.
Measured wins
Billy 4
3
spec wins
Ties
9
equal specs
GO 1
5
spec wins
Overall winner
Screen size
equal specsTechnology
Billy 4
GSM / HSPA
GO 1
GSM / HSPA
2G bands
Billy 4
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
GO 1
GSM 850 / 900 / 1800 / 1900
3G bands
Billy 4
HSDPA 850 / 1900 - SIM 1 & SIM 2 - BM4MI043, HSDPA 900 / 2100 - SIM 1 & SIM 2 - B4MI047
GO 1
HSDPA 850 / 900 / 1900 / 2100
Speed
Billy 4
HSPA 42.2/5.76 Mbps
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
GO 1
HSPA 21.1/5.76 Mbps
Announced
Billy 4
2014, June. Released 2014, October
GO 1
2020, February. Released 2020, July 28
Status
Billy 4
Discontinued
GO 1
Discontinued
Dimensions
Billy 4
122.5 x 64.4 x 9.9 mm (4.82 x 2.54 x 0.39 in)
GO 1
128.5 x 65.2 x 11 mm (5.06 x 2.57 x 0.43 in)
Weight
Billy 4
109 g (3.84 oz)
GO 1
123 g (4.34 oz)
SIM
Billy 4
Dual SIM (Micro-SIM)
GO 1
Nano-SIM + Nano-SIM
Type
Billy 4
TFT
GO 1
TFT LCD
Size
Billy 4
4.0 inches, 45.5 cm2 (~57.7% screen-to-body ratio)
GO 1
4.0 inches, 45.5 cm2 (~54.4% screen-to-body ratio)
Resolution
Billy 4
480 x 800 pixels, 5:3 ratio (~233 ppi density)
GO 1
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
Billy 4
Microsoft Windows Phone 8.1
GO 1
Android 10 (Go edition)
Chipset
Billy 4
Qualcomm MSM8212 Snapdragon 200 (28 nm)
GO 1
Mediatek MT6580 (28 nm)
CPU
Billy 4
Quad-core 1.2 GHz Cortex-A7
GO 1
Quad-core 1.3 GHz
GPU
Billy 4
Adreno 302
GO 1
Mali-400
Card slot
Billy 4
microSDXC (dedicated slot)
GO 1
microSDXC (dedicated slot)
Internal
Billy 4
4GB 512MB RAM
GO 1
8GB 1GB RAM
Other
Billy 4
eMMC 4.5
GO 1
-
Single
Billy 4
8 MP, AF
GO 1
5 MP
Features
Billy 4
LED flash
GO 1
LED flash, Panorama, HDR
Video
Billy 4
720p@30fps
GO 1
720p
Single
Billy 4
1.3 MP
GO 1
2 MP
Video
Billy 4
GO 1
Loudspeaker
Billy 4
Yes
GO 1
Yes
3.5mm jack
Billy 4
Yes
GO 1
Yes
WLAN
Billy 4
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
GO 1
Wi-Fi 802.11 a/b/g/n
Bluetooth
Billy 4
4.0, A2DP
GO 1
4.0, A2DP, LE
Positioning
Billy 4
GPS, GLONASS
GO 1
GPS
NFC
Billy 4
No
GO 1
No
Radio
Billy 4
Stereo FM radio
GO 1
FM radio
USB
Billy 4
microUSB 2.0
GO 1
microUSB 2.0
Sensors
Billy 4
Accelerometer, proximity
GO 1
Accelerometer
Type
Billy 4
Li-Ion 1300 mAh, removable
GO 1
Li-Ion 1400 mAh, removable
Stand-by
Billy 4
Up to 350 h (2G) / Up to 300 h (3G)
GO 1
-
Talk time
Billy 4
Up to 7 h (2G) / Up to 4 h 30 min (3G)
GO 1
-
Colors
Billy 4
White, Black, Red, Gun Metal, Blue, Yellow, Champing Gold
GO 1
Black