Category Breakdown
Bird S661
Siemens CL50
Performance
5.35.3
Camera
2.52.5
Display
22.85.8
Battery
4.63.8
Build
0.20.2
Connectivity
0.71.0
Audio
0.00.0
Overall
4.72.1
Summary
- The Bird S661 features a larger 1.5-inch CSTN display with a resolution of 128 x 128 pixels, offering a higher pixel density of 121 ppi compared to the Siemens CL50's 0-inch monochrome graphic display at 112 x 64 pixels and 112 ppi.
- In terms of build quality, the S661 is slightly heavier at 80g and has more modern dimensions, while the CL50 is more compact at 73g but thicker.
- Both devices lack advanced performance specifications, with 0GB RAM and no camera capabilities.
- The S661 has a 700mAh battery, providing slightly more capacity than the CL50's 600mAh.
- Both phones do not support modern software features or connectivity options, resulting in a basic user experience.
Side-by-side Specification Comparison
Bird S661
Siemens CL50
General
Release Date
2007
2002
Announced
2007
2002
Description
N/A
N/A
Display
Size
1.5"
N/A
Type
CSTN, 65K colors
Monochrome graphic
Resolution
128 x 128 pixels, 1:1 ratio (~121 ppi density)
112 x 64 pixels, 16:9 ratio
PPI
128
112
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
N/A
CPU
N/A
N/A
GPU
N/A
N/A
Memory
N/A
N/A
Expandable Storage
✗
✗
Card Slot
No
No
Camera
Main Camera
N/A
N/A
Main Camera Features
N/A
N/A
Front Camera
N/A
N/A
Front Camera Features
N/A
N/A
Video Recording
N/A
N/A
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
700 mAh
600 mAh
Battery Details
Removable Li-Ion 700 mAh battery
Removable Li-Ion 600 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
105.3 x 44 x 15.8 mm (4.15 x 1.73 x 0.62 in)
73 x 39 x 22 mm, 59 cc (2.87 x 1.54 x 0.87 in)
Weight
80 g
73 g
Materials
N/A
N/A
Colors
Black, Pink
2 - Champagne, Pearl white
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Mini-SIM
Mini-SIM
Network
GSM
GSM
Network Speed
N/A
N/A
5G
✗
✗
4G
✗
✗
WiFi
No
No
Bluetooth
No
No
NFC
✗
✗
USB
No
N/A
IR Blaster
✗
✗
Headphone Jack
✗
✗
Radio
✗
✗
Positioning
No
No
Audio
Stereo Speakers
✗
✗
Loudspeaker
No
No
Audio Jack
No
No
Software & Security
Operating System
N/A
N/A
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
N/A

