Apple Watch Series 3 38 mm vs JVC J20
| Type | - | Touch |
| Dimensions | 38.60 x 33.30 x 11.40 mm | 148.00 x 72.00 x 7.90 mm |
| Weight | 28.70 g | 161.00 g |
| Display size | 1.65" | 5.65" |
| Display | Color / OLED 16M colors 272 x 340 px (1.65") 264 ppi | Color / IPS TFT 16M colors 1080 x 2160 px (5.65") 427 ppi |
| Display protection |   | Corning Gorilla Glass Buy screen protector
|
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion Buy powerbank
| Li-Ion 3400 mAhBuy powerbank
|
| Quick battery charging | | Quick Charge 3.0 |
| Wireless battery charging | | |
| Internal memory | 16 GB | 64 GB |
| RAM memory |  | 4 GB |
| Memory cards | |  microSD, microSDHC, microSDXC up to 2000 GBBuy memory card |
| Operating system | watchOS 4 | Android 8.0 Oreo |
| Processor | Apple S3 | Qualcomm Snapdragon 630 |
| Processor clock | - | 2200 MHz |
| GPU | - | Adreno 508 |
| Touchscreen | | |
| DualSIM | | |
| SIM cards standard | | SingleSIM(nanoSIM) |
| Announced | 3Q 2017 | 3Q 2018 |
| Other names | Watch Series 3 GPS + Cellular 38 mm | - |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 900 2100 |
| LTE standard | FDD LTE: 2600, 2100, 1800, 900, 850, 800 | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | nd | 16 Mpx |
| Optical zoom | nd | |
| Flash | nd | 2x LED |
| Dual-colour LED flash | nd | |
| Video resolution | nd | 3840x2160 px |
| Additional | nd | AF |
| Second camera | | |
| Photo matrix | nd | 5 Mpx |
| Optical zoom | nd | |
| Flash | nd | 2x LED |
| Dual-colour LED flash | nd | |
| Additional | nd | FF |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | nd | 8 Mpx |
| Optical zoom | nd | |
| Flash | nd | LED |
| Dual-colour LED flash | nd | |
| Additional | nd | FF |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | | v2.0 |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.2 | |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | | v2.0 Type-C |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | | T9 |
| Swype | | |
| e-mail client | | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | | AAC, AAC+, AMR, WAV, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | ART |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |
