Samsung Galaxy Watch (42mm SM-R815F) vs Samsung Galaxy J7 Perx (SM-J727P)
Side by side comparison between Samsung Galaxy Watch vs Samsung Galaxy J7 Perx devices, differences, pros, cons and full specifications. What's the better?
,
1.2"
AMOLED
AMOLED
360x360
N/A
1.5GB
RAM
RAM
Dual-core
270
mAh
mAh
(Non removable)
vs
5.5"
IPS
IPS
720x1280
8
MP
MP
5mp
2GB
RAM
RAM
Octa-core
3300
mAh
mAh
(Removable)
What's the better device? Samsung Galaxy J7 Perx (SM-J727P)
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!
10 Advantages 
22 Advantages | 12 Common items in both devices |
| eMMC 5.1 |
| 16 million |
| 4G LTE / 4G LTE-A |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +5 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 | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Model | Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) |
| Other model names | Galaxy Watch 42mm (4G LTE) SM-R815FZDAAMO, Samsung Galileo | Galaxy J7 Perx (Sprint, Boost, Virgin Mobile) SM-J727PZKASPR |
| Country or region available |        (Europe), South Africa, Saudi Arabia, Australia, Israel, Singapore, Taiwan |  USA |
| Brand | Samsung | Samsung |
| Release date | 8/9/2018 | 3/1/2017 |
| Depth | 12.7 millimeters (0.5 inches) | 8.6 millimeters (0.34 inches) |
| Size (width x height) | 41.9 x 45.7 millimeters (1.65 x 1.8 in) | 76.2 x 151.4 millimeters (3 x 5.96 in) |
| Weight | 49 grams (1.72 ounces) | 167 grams (5.85 ounces) |
| Build, materials | Stainless steel body, glass front | Plastic body, glass front |
| Protection against water and others | 5 ATM: 50 meters waterproof. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Display type | Super AMOLED | TFT IPS LCD |
| Screen size | 1.2" inches | 5.5" inches |
| Screen-to-body ratio | ~24.3% (screen-to-body ratio) | ~72.3% (screen-to-body ratio) |
| Display resolution | 360x360 pixels (1:1) | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 424 PPI | 267 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass DX+ | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| System version | Tizen 4.0 | Android 7.0 Nougat |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Chipset | 64bit: Samsung Exynos 9110 (10nm) | 64bit: Qualcomm Snapdragon 626 MSM8953 Pro (14nm) |
| CPU | Dual-core, 1 processor: 2x 1.15GHz ARM Cortex-A53 (Dual-core) | Octa-core, 1 processor: 8x 2.2GHz ARM Cortex-A53 (Octa-core) |
| GPU graphical controller | ARM Mali-T720 MP1 (667MHz) | Qualcomm Adreno 506 650Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| RAM memory | 1.5GB LPDDR4 | 2GB LPDDR3 |
| Internal storage | 4GB (1.5GB available) eMMC 5.1 | 16GB (10GB available) eMMC 5.1 |
| External storage | Not supported | Until 256GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) e-SIM (Eletronic) | 1 slot (Single-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 10 Mbps | 300/50 Mbps |
| Network technology | 3G, 4G | 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 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 900/1900 | CDMA2000 1xEV-DO UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE (Bands 1,3,7,8,20) | LTE Cat6 (Bands 2, 4, 5, 12, 25, 26) TD-LTE (Bands 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| 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 | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| 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 | feature not registered |
| 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 | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| 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 | feature not registered |
| 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 | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 1 microphone | 2 microphones or more |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4 | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, OGG, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| USB | Not supported | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | Not supported | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.2 + A2DP | 4.2 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO 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 | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Sensors | Accelerometer Ambient light sensor Barometer Gyroscope Heart rate Pedometer | Accelerometer Ambient light sensor ANT+ Compass Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 270 mAh | 3300 mAh |
| Charger, watts | 3.5W (5V/7A) Wired charging | Wired charging |
| Inductive / wireless charging | Qi wireless charging | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | 72 hours (3 days) | 288 hours (12 days) |
➕ Other features | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | Not supported | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Midnight Black, Rose Gold • Straps: Black, Grey, Red, Yellow, Purple, Pink, Brown • Compatible with standard 20mm straps • Always-on display • Rotating bezel • Samsung Pay | • Colors: Black • HAC M3/T3 |
☢️ Radiation rate | ||
| Galaxy Watch (42mm SM-R815F) | Galaxy J7 Perx (SM-J727P) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.07W/kg (head), 0.71W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.383W/kg (head), 0.383W/kg (body) | feature not registered |