Siemens SX66
#11238
Sonim XP3plus
#8381Category Breakdown
Siemens SX66
Sonim XP3plus
Performance
61.860.3
Camera
0.042.1
Display
53.453.4
Battery
43.543.5
Build
66.866.8
Overall
42.452.5
Summary
- The Siemens SX66, released in 2004, features a 3.5-inch TFT resistive touchscreen with a resolution of 240 x 320 pixels, while the Sonim XP3plus, launched in 2021, has a smaller 2.8-inch TFT LCD display with the same resolution but a higher pixel density.
- In terms of performance, the SX66 is powered by a 520 MHz Intel Xscale CPU and has 128MB of RAM, whereas the XP3plus utilizes a more advanced Qualcomm Snapdragon 662 octa-core processor with 16GB of RAM, providing significantly better performance.
- The camera on the SX66 is non-existent, while the XP3plus includes an 8MP rear camera, enhancing its photographic capabilities.
- Battery-wise, the SX66 lacks a specified capacity, while the XP3plus has a 2300mAh battery, offering longer usage.
- The SX66 runs on Microsoft Windows Mobile 2003 SE, whereas the XP3plus operates on Sonim OS based on Android 11, providing a more modern software experience.
- Build quality is comparable, with the SX66 measuring 125 x 71 x 18 mm and weighing 210g, while the XP3plus is slightly smaller at 116 x 60 x 28 mm and weighs 220g.
Side-by-side Specification Comparison
Siemens SX66
Sonim XP3plus
General
Release Date
2004
2021
Announced
2004
2021
Description
N/A
N/A
Display
Size
3.5"
2.8"
Type
TFT resistive touchscreen, 65K colors
TFT LCD
Resolution
240 x 320 pixels, 4:3 ratio (~114 ppi density)
240 x 320 pixels, 4:3 ratio (~143 ppi density)
PPI
240
240
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
Qualcomm SM6115 Snapdragon 662 (11 nm)
CPU
Intel Xscale PXA272 520 MHz
Octa-core (4x2.0 GHz Kryo 260 Gold & 4x1.8 GHz Kryo 260 Silver)
GPU
N/A
Adreno 610
Memory
128MB RAM
16GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
SDIO/MMC
microSDXC (dedicated slot)
Camera
Main Camera
N/A
8 MP
Main Camera Details
N/A
8 MP
Front Camera
N/A
N/A
Front Camera Details
N/A
N/A
Video Recording
N/A
N/A
Selfie Video
N/A
N/A
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
N/A
2300 mAh
Battery Details
Removable Li-Ion battery
Li-Ion 2300 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
125 x 71 x 18 mm (4.92 x 2.80 x 0.71 in)
116 x 60 x 28 mm (4.57 x 2.36 x 1.10 in)
Weight
210 g
220 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Silver
Black
Foldable
✗
✗
Connectivity
SIM
Mini-SIM
Nano-SIM
Network
GSM
GSM / HSPA / LTE
Network Speed
N/A
HSPA, LTE
5G
✗
✗
4G
✗
✓
WiFi
Wi-Fi 802.11b
Wi-Fi 802.11 a/b/g/n/ac, dual-band
Bluetooth
Yes
5.0, A2DP, LE
NFC
✗
✗
USB
Proprietary
USB Type-C
IR Blaster
✗
✗
Headphone Jack
✗
✓
Radio
✗
✗
Positioning
No
GPS, GLONASS, GALILEO
Software
Operating System
Microsoft Windows Mobile 2003 SE PocketPC
Sonim OS (based on AOSP Android 11)
OS Version
Microsoft Windows Mobile 2003 SE PocketPC
Sonim OS (based on AOSP Android 11)
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
N/A
Accelerometer, barometer
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
No
Yes