Zeblaze Crystal Smart Watch | Overmax Touch 2.5 Smartwatch | Oukitel A58 Smart Watch | |
Use the following link to refer to this comparison | |||
Remove all | | Add to compare | | Add to compare | | Add to compare |
Introduction |
|||
Released | 2015 Aug 21 | 2015 Aug 12 | 2016 Oct |
Device Category | Smartwatch | Smartwatch | Smartwatch |
Physical Attributes |
|||
Width | 41.5 mm | 44.5 mm | 35 mm |
Height | 49 mm | 44.5 mm | 47 mm |
Depth | 10.9 mm | 12.2 mm | 12 mm |
Dimensions | 1.63x1.93x0.43 inches | 1.75x1.75x0.48 inches | 1.38x1.85x0.47 inches |
Mass | 47 g | 70 g | 54 g |
1.66 ounces | 2.47 ounces | 1.9 ounces | |
Software Environment |
|||
Platform | Linux | Android | Linux |
Operating System | Google Android 4.4.4 (KitKat) | ||
Software Extras | No | No | Voice Command |
Application processor, Chipset |
|||
CPU | MediaTek MT2502C (Aster), 2014, 32 bit, single-core, 28 nm | MediaTek MT2502C (Aster), 2014, 32 bit, single-core, 28 nm | MediaTek MT2502C (Aster), 2014, 32 bit, single-core, 28 nm |
Operative Memory |
|||
RAM Type | Yes | Yes | LPDDR2 SDRAM |
RAM Capacity (converted) | 128 MiB RAM | 64 MiB RAM | |
Non-volatile Memory |
|||
Non-volatile Memory Interface | Yes | Yes | Yes |
Non-volatile Memory Capacity (converted) | 64 MiB ROM | 128 MiB ROM | 128 MiB ROM |
Display |
|||
Display Diagonal | 39.1 mm | 30.98 mm | 40.64 mm |
1.5 inch | 1.2 inch | 1.6 inch | |
Resolution | 240x240 | 240x240 | 256x320 |
Horizontal Full Bezel Width | 13.85 mm | 22.59 mm | 9.61 mm |
Display Area Utilization | 37.6% | 24.2% | 49.0% |
Pixel Density | 220 PPI | 278 PPI | 256 PPI |
Display Type | Color TN-TFT LCD display | Color IPS TFT LCD display | Color IPS TFT LCD display |
Number of Display Scales | 16.8M | 16.8M | |
Scratch Resistant Screen | Yes | No | Sapphire Glass |
Graphical Subsystem |
|||
Audio/Video Interfaces |
|||
Audio Subsystem |
|||
Microphone(s) | No | mono | mono |
Loudspeaker(s) | Yes | mono | mono |
Cellular Phone |
|||
Supported Cellular Bands | No | No | GSM850, GSM900, GSM1800, GSM1900 bands |
Supported Cellular Data Links | No | No | CSD, GPRS data links |
Complementary Phone Services | No | Vibrate | Voice transmission, Voice speaker, Vibrate, Speakerphone |
Secondary Cellular Phone |
|||
Control Peripherals |
|||
Touchscreen Type | Capacitive multi-touch screen | Capacitive multi-touch screen | Capacitive multi-touch screen |
Communication Interfaces |
|||
USB | No | USB 2.0 | USB 2.0 |
No | USB HS (480 Mbps) | USB FS (12 Mbps) | |
USB Services | No | USB charging | USB charging |
USB Connector | No | USB Micro-B (Micro-USB) | Proprietary |
Bluetooth | Bluetooth 4.0 | Bluetooth 4.0 | Bluetooth 4.0 |
Wireless LAN | No | 802.11b, 802.11g, 802.11n | No |
Multimedia Broadcast |
|||
Satellite Navigation |
|||
Primary Camera System |
|||
Secondary Camera System |
|||
Built-in Sensors |
|||
Built-in accelerometer | Yes | Yes | Yes |
Built-in gyroscope | Yes | No | Yes |
Additional sensors | HR sensor, Step counter | HR sensor | HR sensor, Step counter |
Ingress Protection |
|||
Protection from solid materials | 6 Totally protected from dust | Yes | 5 Protected against dust with limited ingress |
Protection from liquids | 5 Protected against low pressure jets (all directions), limited ingress | Yes | 3 Protection against direct sprays up to 60 degrees from the vertical |
Power Supply |
|||
Battery | Li-ion polymer (LiPo) | Li-ion | Li-ion polymer (LiPo) |
built-in | built-in | built-in | |
1-cell | 1-cell | 1-cell | |
Nominal Battery Capacity | 280 mAh battery | 300 mAh battery | 280 mAh battery |
Geographical Attributes |
|||
Market Countries | No | No | China, HK |
Market Regions | No | No | Asia |
Mobile Operator | |||
Datasheet Attributes |
|||
Data Integrity | Preliminary | Preliminary | Final |
Added | 2015-11-24 17:26 | 2016-06-20 23:11 | 2017-03-28 19:07 |