Withapproaching soon on July 15, sales of various tech products from various retailers are happening throughout the week. The Apple Watch and its many iterations, in particular, are being discounted by retailers like Amazon and Walmart. The , for example, is and starts at . You can also find several to style your wearable, and they range from sleek and professional, to downright gaudy.
But figuring out what exactly each generation of Apple Watch is capable of can be confusing. For starters, theis the most recent and most advanced. It has a bigger display and an ECG sensor for more accurate heart readings. The Watch Series 3 came out in 2017 and introduced LTE connectivity. TheÂ Â before that featured GPS and water resistance.
With Apple unveiling the latestat , we anticipate for the upcoming , including a menstrual cycle tracker and a Noise app. There are also Â that speculate a few other surprising features. Until Apple officially launches the wearable however, check out the chart to see how each Apple Watch differs from one another. And check out our in-depth .
Apple Watch Series 4, 3 and 2 comparison
|Apple Watch 4||Apple Watch 3||Apple Watch Series 2|
|Display||40mm: 1.57-inch OLED; 44mm: 1.73-inch OLED||38mm: 1.5-inch OLED; 42mm: 1.65-inch OLED Â||38mm: 1.5-inch OLED; 42mm: 1.65-inch OLED|
|Resolution||40mm: 368×448 (369 ppi); 44mm: 324×394 (295 ppi)||38mm: 340×272 (290ppi); 42mm: 390×312 (302 ppi) Â||38mm: 340×272 (290ppi); 42mm: 390×312 (302 ppi)|
|Dimensions||40mm (steel): 40x34x10.7mm; 44mm (steel): 44x38x10.7mm||38mm: 38.6×33.3×11.65mm; 42mm: 42.5×36.4×11.65mmÂ||38mm: 38.6×33.3×11.4mm; 42mm: 42.5×36.4×11.4mm|
|Protection||All ceramic and sapphire crystal back||Ion-X glass; Sapphire crystal on Steel and Ceramic models Â||Ion-X glass; Sapphire crystal on Steel and Ceramic models|
|Strap size||Proprietary; interchangeableÂ Â Â||Proprietary; interchangeable Â||Proprietary; interchangeable|
|Finishes||Aluminum and stainless-steel||Aluminum||Aluminum|
|Processor||Apple S4||Apple S3||Apple S2|
|Storage||16GB||16GB cellular, 8GB GPS only||8GB (2GB for music)|
|Battery||“Up to 18 hours”||“Up to 18 hours”||38mm: 273 mAh; 42mm: 334mAh|
|Operating system||Watch OS 5||Watch OS 4 to 5||Watch OS 3 to 5|
|Scroll wheel||Yes with haptic feedback||Yes||Yes|
|Loudspeaker||Yes (50% louder than Series 3)||Yes||Yes|
|Heart-rate sensor||Yes (electrical and optical)||Yes (optical)||Yes (optical)|
|Ambient light sensor||Yes||Yes||Yes|
|Water-resistant||5 ATM; 50 meters Â||5 ATM; 50 meters||5 ATM; 50 meters|