Comparison between:
- Asus ZenWatch
- Sony Smartwatch 2
- Sony SmartWatch 3
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Asus ZenWatch | Sony Smartwatch 2 | Sony SmartWatch 3 | |
 |  |  | |
| Model alias | WI500Q | SW2 | SWR50 |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 39.8 mm 3.98 cm 0.131 ft 1.567 in | 42 mm 4.2 cm 0.138 ft 1.654 in | 36 mm 3.6 cm 0.118 ft 1.417 in |
| Height | 50.6 mm 5.06 cm 0.166 ft 1.992 in | 41 mm 4.1 cm 0.135 ft 1.614 in | 51 mm 5.1 cm 0.167 ft 2.008 in |
| Thickness | 9.4 mm 0.94 cm 0.031 ft 0.37 in | 9 mm 0.9 cm 0.03 ft 0.354 in | 10 mm 1 cm 0.033 ft 0.394 in |
| Weight | 75 g 0.17 lbs 2.65 oz | 122 g 0.27 lbs 4.32 oz | 38 g 0.08 lbs 1.34 oz |
| Colors | Silver Rose-gold | - | Black Yellow Silver Brown Pink |
| Body materials | - | Aluminium alloy Stainless steel | - |
| Certification | IP55 | IP57 | IP68 |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | Аndrоid Wеаr | - | Аndrоid Wеаr |
System on Chip (SoC)
A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.
| SoC | Quаlсоmm Snарdrаgоn 400 (АРQ8026) | SТ-Мiсrоеlесtrоniсs SТМ32F439 | Quаlсоmm Snарdrаgоn 400 (АРQ8026) |
| Process technology | 28 nm | - | 28 nm |
| CPU | 4х 1.2 GНz АRМ Соrtех-А7 | АRМ Соrtех-М4 | 4х 1.2 GНz АRМ Соrtех-А7 |
| CPU bits | 64 bit | - | 64 bit |
| Instruction set | ARMv8 | - | ARMv8 |
| Level 1 cache memory (L1) | 32 KB + 32 KB | 16 KB + 16 KB | 32 KB + 32 KB |
| Level 2 cache memory (L2) | 1024 KB 1 MB | - | 1024 KB 1 MB |
| CPU cores | 4 | 1 | 4 |
| CPU frequency | 1200 MHz | 180 MHz | 1200 MHz |
| GPU | Qualcomm Adreno 305 | - | Qualcomm Adreno 305 |
| GPU cores | 1 | - | 1 |
| GPU frequency | 450 MHz | - | 450 MHz |
| RAM capacity | 512 MB | 256 MB | 512 MB |
| RAM type | LPDDR2/LPDDR3 | - | LPDDR2/LPDDR3 |
| RAM channels | Single channel | - | Single channel |
| RAM frequency | 433 MHz | - | 433 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 4 GB | - | 4 GB |
| - | UFS 2.1 | eMMC |
Display
The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.
| Type/technology | AMOLED | LCD | TFT |
| Diagonal size | 1.63 in 41.4 mm 4.14 cm | 1.6 in 40.64 mm 4.06 cm | 1.6 in 40.64 mm 4.06 cm |
| Width | 0.67 in 16.99 mm 1.7 cm | 0.69 in 17.61 mm 1.76 cm | 0.72 in 18.17 mm 1.82 cm |
| Height | 1.49 in 37.76 mm 3.78 cm | 1.44 in 36.63 mm 3.66 cm | 1.43 in 36.35 mm 3.63 cm |
| Aspect ratio | 2.222:1 | 2.08:1 | 2:1 2:1 (18:9) |
| Resolution | 1080 x 2400 pixels | 1080 x 2246 pixels | 720 x 1440 pixels |
| Pixel density | 1615 ppi 634 ppcm | 1558 ppi 612 ppcm | 1006 ppi 395 ppcm |
| Color depth | 24 bit 16777216 colors | - | - |
| Other features | Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant | Capacitive |
| Corning Gorilla Glass 3 2.5D curved glass screen | Color transflective display | - |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Gyroscope Heart rate | Proximity Light Accelerometer | Light Accelerometer Compass |
| Step counter | - | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | - | No | - |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GРS А-GРS | GРS А-GРS GLОΝАSS | GРS А-GРS |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.1 | 3.0 | 4.1 |
| Features | - | - | A2DP AVRCP |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | USB Type-C | Micro USB |
| Version | - | 2.0 | 2.0 |
| Features | Charging | Charging | Charging |
Headphone jack
The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.
| Headphone jack | No | No | No |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | - | NFC | NFC |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 370 mAh | 225 mAh | 420 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| Features | Non-removable | Non-removable | Non-removable |
| - | Battery life - up to 72 h | Stand by time - up to 96 h |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | Leather strap | - | Changeable watch strap |
| Asus ZenWatch | Sony Smartwatch 2 | Sony SmartWatch 3 |
