Samsung Galaxy Watch4 Classic 42mm vs Samsung Gear S2
| Type | - | - |
| Waterproofness & dust-resistance | IP68 | IP68 |
| Dimensions | 41.50 x 41.50 x 11.20 mm | 44.00 x 51.80 x 13.40 mm |
| Weight | 46.50 g | 51.00 g |
| Display size | 1.20" | 1.20" |
| Display | Color / Super AMOLED 396 x 396 px (1.20") 467 ppi | Color / Super AMOLED 360 x 360 px (1.20") 424 ppi |
| Display protection | Corning Gorilla Glass Buy screen protector
 |  |
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion 247 mAhBuy powerbank
| Li-Ion 300 mAhBuy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | WPC |  |
| Internal memory | 16 GB | 4 GB |
| RAM memory | 1.5 GB | 512 MB |
| Memory cards | | |
| Operating system | Wear OS | Tizen |
| Interface | One UI Watch3 | - |
| Processor | Samsung Exynos W920 | - |
| Processor clock | 1180 MHz | 1000 MHz |
| GPU | ARM Mali-G68 | - |
| Touchscreen | | |
| SAR (10g) |  | 0,54 W/kg |
| DualSIM | | |
| SIM cards standard | | SingleSIM(eSIM) |
| Announced | 3Q 2021 | 4Q 2015 |
| Other names | SM-R880X; Galaxy Watch 4 Classic 42 mm | SM-R730; Orbis S2 |
| GSM frequencies | | 850 900 1800 1900 |
| UMTS | | 900 2100 |
| LTE standard | | |
| Standard 5G | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
CAMERAS - FRONT
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | | |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v5.0 | v4.1 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n | v802.11 b/g/n |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | | |
| GPS | | |
| A-GPS | | |
| GLONASS | | |
| Beidou | | |
| Galileo | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | | |
| Swype | | |
| e-mail client | | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | | |
| HD Voice | | |
| Sound formats | | AAC, AAC+, M4A, OGG, eAAC+ |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | |
| 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 | | |
| Vibrations | | |