Apple Watch 3 Aluminum (42mm 4G) vs Panasonic P51
Side by side comparison between Apple Watch 3 Aluminum vs Panasonic P51 devices, differences, pros, cons and full specifications. What's the better?
,
1.65"
AMOLED
AMOLED
390x312
N/A
768MB
RAM
RAM
Dual-core
352
mAh
mAh
(Non removable)
vs
5"
IPS
IPS
720x1280
8
MP
MP
1.3mp
1GB
RAM
RAM
Quad-core
2500
mAh
mAh
(Non removable)
What's the better device? Panasonic P51
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!
15 Advantages 
16 Advantages | 8 Common items in both devices |
| 16 million |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Li-Ion: lithium-ion (Non removable) |
| A-GPS, GeoTagging, GLONASS / A-GPS, GeoTagging |
| + 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 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Model | Watch 3 Aluminum (42mm 4G) | Panasonic P51 |
| Other model names | Apple Watch Series 3 GPS + Cellular (4G LTE), Apple Watch S3 | Panasonic P51 Y900 |
| Country or region available |  (Global, International) | feature not registered |
| Brand | Apple | Panasonic |
| Release date | 9/22/2017 | 6/1/2013 |
| Depth | 11.4 millimeters (0.45 inches) | 8.5 millimeters (0.33 inches) |
| Size (width x height) | 36.4 x 42.5 millimeters (1.43 x 1.67 in) | 75 x 144 millimeters (2.95 x 5.67 in) |
| Weight | 35 grams (1.23 ounces) | 135 grams (4.73 ounces) |
| Build, materials | Aluminum body, glass front, plastic composite back | feature not registered |
| Protection against water and others | 5 ATM: 50 meters waterproof | Not supported |
📲 Display | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Display type | AMOLED | TFT IPS LCD |
| Screen size | 1.65" inches | 5" inches |
| Screen-to-body ratio | ~55.4% (screen-to-body ratio) | ~63.8% (screen-to-body ratio) |
| Display resolution | 390x312 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 303 PPI | 294 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| System version | WatchOS 4.0 | Android 4.2.1 Jelly Bean |
| Firmware update | WatchOS 5.0 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Chipset | 32bit: Apple S3 (28nm) | 32bit: MediaTek MT6589 |
| CPU | Dual-core, 1 processor: 2x 1GHz ARM Cortex-A7 (Dual-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | PowerVR G6200 | PowerVR SXG544 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| RAM memory | 768MB LPDDR4 | 1GB LPDDR2 |
| Internal storage | 16GB (10GB available) | 4GB (2GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) e-SIM (Eletronic) | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 150/50 Mbps | 21/5.76 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | A1891 model (Europe,Australia): UMTS 800/850/900/2100 A1861 model (USA,LATAM,Canada): UMTS 800/850/1700/1900 A1892 model (China): UMTS 2100 | UMTS 900/2100 |
| Primary 4G network | LTE Cat4 A1891 model (Europe,Australia): LTE (Bands 1,3,5,7,8,18,19,20,26) A1861 model (USA,LATAM,Canada): LTE (Bands 2,4,5,12,13,17,18,19,25,26) TD-LTE (Bands 41) A1892 model (China): LTE (Bands 1,3) TD-LTE (Bands 39,40,41) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| 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 | feature not registered |
| Zoom | Not supported | Only digital zoom |
| Face/smile detection | Not supported | Face detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Front camera (secondary) | Not supported | 1.3 megapixels |
| Front camera resolution | Not supported | 1280x1024 pixels |
| Video recording (secondary) | Not supported | HD (1280x720) |
| 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 | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | Not supported | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, DivX, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, eAAC+, AC3 |
🔌 Connectivity | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| USB | Not supported | MicroUSB 2.0 |
| Audio output | Not supported | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.2 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Sensors | Accelerometer Ambient light sensor Barometer Gyroscope Heart rate Pedometer | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 352 mAh | 2500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Magnetic charging (dock) | Not supported |
| Talk time autonomy | 18 hours | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| 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 | 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: Silver, Gold, Space Gray • Sport Band or Nike Sport Band • 1000 nits screen • 3D Touch display • Siri | • Colors: Black, White • Touch focus • WiFi hotspot • Active noise cancellation with dedicated mic • Java framework |
☢️ Radiation rate | ||
| Apple Watch 3 Aluminum (42mm 4G) | Panasonic P51 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.52W/kg (head), 0.34W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |