Screen size
Energy S550Winner: 5.5"+9.1%
Ultimate U505s5.0"
Quick verdict
Energy S550 leads the measured specs 7-2.
Measured wins
Energy S550
7
spec wins
Overall winner
Ties
8
equal specs
Ultimate U505s
2
spec wins
Screen size
Technology
Energy S550
GSM / HSPA / LTE
Ultimate U505s
GSM / HSPA / LTE
2G bands
Energy S550
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Ultimate U505s
GSM 850 / 900 / 1800 / 1900
3G bands
Energy S550
HSDPA 900 / 2100
Ultimate U505s
HSDPA 850 / 900 / 2100
4G bands
Energy S550
1, 3, 7, 20
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
Main camera
Front camera
Battery
equal specsWired 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
Ultimate U505s
1, 3, 7, 8, 20, 28, 38, 40, 41
Speed
Energy S550
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Ultimate U505s
HSPA, LTE
Announced
Energy S550
2017, December. Released 2017, December
Ultimate U505s
2022, March
Status
Energy S550
Discontinued
Ultimate U505s
Available. Released 2022, March
Dimensions
Energy S550
154.8 x 78.2 x 8.8 mm (6.09 x 3.08 x 0.35 in)
Ultimate U505s
138.5 x 73.5 x 10.6 mm (5.45 x 2.89 x 0.42 in)
Weight
Energy S550
180 g (6.35 oz)
Ultimate U505s
-
SIM
Energy S550
Nano-SIM + Micro-SIM
Ultimate U505s
Nano-SIM + Nano-SIM
Type
Energy S550
IPS LCD
Ultimate U505s
TFT LCD
Size
Energy S550
5.5 inches, 83.4 cm2 (~68.9% screen-to-body ratio)
Ultimate U505s
5.0 inches, 68.9 cm2 (~67.7% screen-to-body ratio)
Resolution
Energy S550
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
Ultimate U505s
480 x 854 pixels, 16:9 ratio (~196 ppi density)
OS
Energy S550
Android 6.0 (Marshmallow)
Ultimate U505s
Android 11 (Go edition)
Chipset
Energy S550
Mediatek MT6737 (28 nm)
Ultimate U505s
Mediatek MT6739
CPU
Energy S550
Quad-core 1.3 GHz Cortex-A53
Ultimate U505s
Quad-core 1.5 GHz
GPU
Energy S550
Mali-T720
Ultimate U505s
-
Card slot
Energy S550
microSDXC (uses shared SIM slot)
Ultimate U505s
microSDHC
Internal
Energy S550
8GB 1GB RAM
Ultimate U505s
16GB 1GB RAM
Other
Energy S550
eMMC 5.0
Ultimate U505s
eMMC 5.1
Single
Energy S550
13 MP, AF
Ultimate U505s
-
Features
Energy S550
LED flash
Ultimate U505s
LED flash
Video
Energy S550
720p@30fps
Ultimate U505s
1080p@30fps
Dual
Energy S550
-
Ultimate U505s
5 MP VGA
Single
Energy S550
5 MP
Ultimate U505s
2 MP
Video
Energy S550
Ultimate U505s
720p
Loudspeaker
Energy S550
Yes
Ultimate U505s
Yes
3.5mm jack
Energy S550
Yes
Ultimate U505s
Yes
WLAN
Energy S550
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Ultimate U505s
Yes
Bluetooth
Energy S550
4.0, A2DP, LE
Ultimate U505s
4.0, A2DP
Positioning
Energy S550
GPS
Ultimate U505s
GPS
NFC
Energy S550
No
Ultimate U505s
No
Radio
Energy S550
FM radio
Ultimate U505s
FM radio
USB
Energy S550
microUSB 2.0
Ultimate U505s
microUSB 2.0
Sensors
Energy S550
Accelerometer, proximity
Ultimate U505s
Accelerometer, proximity
Type
Energy S550
Li-Ion 3000 mAh, non-removable
Ultimate U505s
Li-Po 3000 mAh, removable
Stand-by
Energy S550
Up to 400 h (3G)
Ultimate U505s
-
Talk time
Energy S550
Up to 10 h (3G)
Ultimate U505s
-
Colors
Energy S550
Black
Ultimate U505s
Black
SAR
Energy S550
0.28 W/kg (head) 1.23 W/kg (body)
Ultimate U505s
-
Price
Energy S550
About 120 EUR
Ultimate U505s
About 80 EUR