Category Breakdown
LG KF755 Secret
Sony Ericsson K850
Performance
5.324.2
Camera
13.811.7
Display
26.332.3
Battery
6.58.8
Build
17.40.2
Connectivity
7.014.4
Audio
8.98.9
Overall
8.711.0
Summary
- The LG KF755 Secret features a slightly larger 2.4-inch TFT resistive touchscreen display with a resolution of 240 x 320 pixels, while the Sony Ericsson K850 has a 2.2-inch TFT display with the same resolution but a lower pixel density.
- In terms of performance, the K850 has 40MB of storage and 40MB of RAM, compared to the KF755, which has no RAM or specified storage.
- Both phones have a 5 MP rear camera with autofocus, but the KF755 supports video recording at 480p, whereas the K850 is limited to 320p.
- The KF755 has an 800 mAh battery, while the K850 offers a larger 930 mAh battery.
- Both devices lack advanced software features and connectivity options, with no WiFi or modern operating systems.
- The build quality is comparable, with the KF755 being slightly slimmer and lighter than the K850.
Side-by-side Specification Comparison
LG KF755 Secret
Sony Ericsson K850
General
Release Date
2008
2007
Announced
2008
2007
Description
N/A
K850i HSDPA/850/900/1800/1900 MHzK858c 850/900/1800/1900 MHz for China Mainland
Display
Size
2.4"
2.2"
Type
TFT resistive touchscreen, 256K colors
TFT, 256K colors
Resolution
240 x 320 pixels, 4:3 ratio (~167 ppi density)
240 x 320 pixels, 4:3 ratio (~182 ppi density)
PPI
240
240
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Scratch-resistant glass
N/A
Performance
Chipset
N/A
N/A
CPU
N/A
N/A
GPU
N/A
N/A
Memory
N/A
40MB
Expandable Storage
✗
✗
Card Slot
microSD (dedicated slot)
Memory Stick Micro (M2); microSDHC (dedicated slot), 512 MB included
Camera
Main Camera
5 MP, AF
5 MP, AF
Main Camera Features
LED flash
xenon flash and 3LED video light, auto lens cover
Front Camera
N/A
Videocall camera
Front Camera Features
N/A
N/A
Video Recording
480p@30fps, 320p@120fps
320p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
800 mAh
930 mAh
Battery Details
Removable Li-Ion 800 mAh battery
Removable Li-Po 930 mAh battery (BST-38)
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
102.8 x 50.8 x 11.8 mm (4.05 x 2.0 x 0.46 in)
102 x 48 x 17 mm (4.02 x 1.89 x 0.67 in)
Weight
112 g
118 g
Materials
N/A
N/A
Colors
Black
Luminous Green, Velvet Blue, Quicksilver black
Foldable
✗
✗
SAR
0.50 W/kg (head) 0.76 W/kg (body)
1.50 W/kg (head) 1.56 W/kg (body)
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
GSM / HSPA
Network Speed
N/A
HSPA 3.6/0.384 Mbps (K850i)
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
2.0, A2DP
2.0, A2DP
NFC
✗
✗
USB
2.0
2.0
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
No
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
Accelerometer

