Apple Watch 2 (38mm) vs Samsung Galaxy J3 Star (SM-J337T)
Side by side comparison between Apple Watch 2 vs Samsung Galaxy J3 Star devices, differences, pros, cons and full specifications. What's the better?
,
1.5"
AMOLED
AMOLED
340x272
N/A
512MB
RAM
RAM
Dual-core
273
mAh
mAh
(Non removable)
vs
What's the better device? Samsung Galaxy J3 Star (SM-J337T)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
9 Advantages 
22 Advantages | 7 Common items in both devices |
| 16 million |
| Capacitive |
| Multitouch |
| Accelerometer |
| Gyroscope |
| A-GPS, GeoTagging, GLONASS |
| 802.11 b/g/n [wifi4] |
| + specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Model | Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) |
| Other model names | Apple Watch Series 2 Stainless Steel A1757 38mm, iWatch S2 | T-Mobile Galaxy J3 (2018) SM-J337TZDATMB |
| Country or region available |  (Global, International) |  USA |
| Brand | Apple | Samsung |
| Release date | 12/1/2016 | 5/1/2018 |
| Depth | 11.4 millimeters (0.45 inches) | 9 millimeters (0.35 inches) |
| Size (width x height) | 33.3 x 38.6 millimeters (1.31 x 1.52 in) | 70.2 x 142.8 millimeters (2.76 x 5.62 in) |
| Weight | 42 grams (1.47 ounces) | 152 grams (5.32 ounces) |
| Build, materials | Stainless steel body, glass front, ceramic back | Plastic body, glass front |
| Protection against water and others | 5 ATM: 50 meters waterproof | Not supported |
📲 Display | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Display type | AMOLED | TFT IPS LCD |
| Screen size | 1.5" inches | 5" inches |
| Screen-to-body ratio | ~55.1% (screen-to-body ratio) | ~68.8% (screen-to-body ratio) |
| Display resolution | 340x272 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 290 PPI | 294 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Sapphire Glass | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| System version | WatchOS 3.0 | Android 8.0 Oreo |
| Firmware update | WatchOS 5.0 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Chipset | 32bit: Apple S2 (28nm) | 64bit: Samsung Exynos 7570 (14nm) |
| CPU | Dual-core, 1 processor: 2x 780MHz ARM Cortex-A7 (Dual-core) | Quad-core, 1 processor: 4x 1.4GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | PowerVR G6200 | ARM Mali-T720 MP1 (830MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| RAM memory | 512MB LPDDR3 | 2GB LPDDR3 |
| Internal storage | 8GB (5GB available) | 16GB (9GB available) eMMC 5.0 |
| External storage | Not supported | Until 512GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | Not supported | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | feature not registered | 150/50 Mbps |
| Network technology | feature not registered | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Not supported | Quad-Band 850/900/1800/1900 |
| Primary 2G network | Not supported | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat4 (Bands 2, 3, 4, 5, 7, 12, 14) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Back camera (main camera) | Not supported | 8 megapixels |
| Main camera resolution | Not supported | 3264x2448 pixels |
| Video recording (primary) | Not supported | Full HD (1920x1080) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/1.9 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Autofocus |
| Touch focus | Not supported | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Not supported | Only digital zoom |
| Face/smile detection | Not supported | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Front camera (secondary) | Not supported | 5 megapixels |
| Front camera resolution | Not supported | 2560x1920 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | Not supported |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| USB | Not supported | MicroUSB 2.0 |
| Audio output | Not supported | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Sensors | Accelerometer Ambient light sensor Gyroscope Heart rate Pedometer | Accelerometer Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 273 mAh | 2600 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Magnetic charging (dock) | feature not registered |
| Talk time autonomy | 18 hours | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| Call control | Not supported | Voice dialing, Voice recorder |
| Messaging | SMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | feature not registered | Polyphonic and customized |
| Web browser | Not supported | HTML, XHTML, HTML5 |
| Antenna | Not supported | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Space black, Silver • Sport or leather bands • 1000 nits screen • 3D Touch display • Siri • Requires an iPhone 5s/iOS 11 or later | • Colors: Gold |
☢️ Radiation rate | ||
| Apple Watch 2 (38mm) | Galaxy J3 Star (SM-J337T) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.2W/kg (head), 1.58W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |