Screen size
s4007 Leo IV4.0"
s5021 Wave ProWinner: 5.0"+20%
Quick verdict
s5021 Wave Pro leads the measured specs 6-4.
Measured wins
s4007 Leo IV
4
spec wins
Ties
6
equal specs
s5021 Wave Pro
6
spec wins
Overall winner
Screen size
Technology
s4007 Leo IV
GSM / HSPA
s5021 Wave Pro
GSM / HSPA
2G bands
s4007 Leo IV
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
s5021 Wave Pro
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
s4007 Leo IV
HSDPA 850 / 1900
s5021 Wave Pro
HSDPA 850 / 1900
Speed
s4007 Leo IV
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
equal specsMain camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
s5021 Wave Pro
HSPA 21.1/5.76 Mbps
Announced
s4007 Leo IV
2016, July. Released 2016, July
s5021 Wave Pro
2017, February. Released 2017, February
Status
s4007 Leo IV
Discontinued
s5021 Wave Pro
Discontinued
Dimensions
s4007 Leo IV
126 x 65 x 10.5 mm (4.96 x 2.56 x 0.41 in)
s5021 Wave Pro
145.8 x 73 x 9.7 mm (5.74 x 2.87 x 0.38 in)
Weight
s4007 Leo IV
113 g (3.99 oz)
s5021 Wave Pro
168 g (5.93 oz)
SIM
s4007 Leo IV
Dual SIM (Mini-SIM/ Micro-SIM, dual stand-by)
s5021 Wave Pro
Dual SIM (Micro-SIM, dual stand-by)
Type
s4007 Leo IV
IPS LCD
s5021 Wave Pro
IPS LCD
Size
s4007 Leo IV
4.0 inches, 45.5 cm2 (~55.6% screen-to-body ratio)
s5021 Wave Pro
5.0 inches, 68.9 cm2 (~64.7% screen-to-body ratio)
Resolution
s4007 Leo IV
480 x 800 pixels, 5:3 ratio (~233 ppi density)
s5021 Wave Pro
480 x 854 pixels, 16:9 ratio (~196 ppi density)
OS
s4007 Leo IV
Android 4.4 (KitKat)
s5021 Wave Pro
Android 6.0 (Marshmallow)
Chipset
s4007 Leo IV
Mediatek MT6572 (28 nm)
s5021 Wave Pro
Spreadtrum SC7731C
CPU
s4007 Leo IV
Dual-core 1.3 GHz Cortex-A7
s5021 Wave Pro
Quad-core 1.2 GHz Cortex-A7
GPU
s4007 Leo IV
Mali-400
s5021 Wave Pro
Mali-400
Card slot
s4007 Leo IV
microSDHC
s5021 Wave Pro
microSDHC
Internal
s4007 Leo IV
4GB 512MB RAM
s5021 Wave Pro
4GB 512MB RAM
Single
s4007 Leo IV
5 MP, f/2.8
s5021 Wave Pro
8 MP, f/2.4
Features
s4007 Leo IV
LED flash, panorama
s5021 Wave Pro
LED flash, panorama
Video
s4007 Leo IV
1080p@30fps
s5021 Wave Pro
720p@30fps
Single
s4007 Leo IV
2 MP, f/2.8
s5021 Wave Pro
5 MP, f/2.8
Video
s4007 Leo IV
s5021 Wave Pro
Loudspeaker
s4007 Leo IV
Yes
s5021 Wave Pro
Yes
3.5mm jack
s4007 Leo IV
Yes
s5021 Wave Pro
Yes
WLAN
s4007 Leo IV
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
s5021 Wave Pro
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Bluetooth
s4007 Leo IV
4.0, A2DP, LE
s5021 Wave Pro
2.1, A2DP
Positioning
s4007 Leo IV
GPS
s5021 Wave Pro
GPS
NFC
s4007 Leo IV
No
s5021 Wave Pro
No
Radio
s4007 Leo IV
Stereo FM radio
s5021 Wave Pro
Stereo FM radio
USB
s4007 Leo IV
microUSB 2.0
s5021 Wave Pro
microUSB 2.0
Sensors
s4007 Leo IV
Accelerometer
s5021 Wave Pro
Accelerometer
Type
s4007 Leo IV
Li-Ion 1300 mAh battery
s5021 Wave Pro
Li-Po 2000 mAh, removable
Stand-by
s4007 Leo IV
Up to 192 h (3G)
s5021 Wave Pro
Up to 240 h (3G)
Talk time
s4007 Leo IV
Up to 5 h (3G)
s5021 Wave Pro
Up to 8 h (3G)
Colors
s4007 Leo IV
White, Black
s5021 Wave Pro
Black, White, Blue
SAR
s4007 Leo IV
0.47 W/kg (head) 0.51 W/kg (body)
s5021 Wave Pro
0.73 W/kg (head) 0.87 W/kg (body)