The Apple Watch is recently in its 3rd iteration, and while it may come that not much has improved on the surface. There have been some improvements under the hood.

The huge draw for the Apple Series 3 is the opportunity of LTE connectivity. This means excellent freedom from your paired iPhone, and always-on connectivity wherever you get network coverage. The greatest news of all is that your Apple Watch 3 will share the same phone number as your iPhone.

Specifications:

Network: GSM / HSPA / LTE 2G bands GSM 850 / 900 / 1800 / 1900
Network Speed: HSPA, LTE
Status: Available. Released 2017, September
Body Dimensions: 42.5 x 36.4 x 11.4 mm (1.67 x 1.43 x 0.45 in)
Weight: 52.8 g
Build: Stainless Steel/Ceramic back
SIM: Electronic SIM card 50m waterproof
Type of Display: AMOLED capacitive touchscreen, 16M colors
Display Resolution: 390 x 312 pixels
Size of Display: 1.65 inches, 8.6 cm2
Multitouch: Yes
Protection: Sapphire crystal glass 3D
OS: watchOS 4.0, upgradable to 4.1
Chipset: Apple S3
CPU: Dual-core
GPU: PowerVR
Memory: No Card Slot
Internal: 16 GB, 768 MB RAM
Camera: No
WLAN: Wi-Fi 802.11 b/g/n
Bluetooth: 4.2, A2DP, LE
GPS: Yes, with A-GPS, GLONASS
NFC: Yes
Sensors: Accelerometer, gyro, heart rate, barometer
Messaging: SMS(threaded view), Email, Push Mail, IM
Battery: Li-Ion 279 mAh Non-removable battery
Stand-by: Up to 18 h (mixed usage)

You feel its Snappier performance. The company Improved exercise tracking. It comes with Super-bright and clear display. The company also developed watchOS 4. LTE has a big impact on battery life. I think needs more dedicated watch apps to make use of LTE. Siri doesn’t work properly. The great bad news is there is no LTE roaming.