Apple unveiled its latest tech at a grand launch event in California on Wednesday,... including three different iPhone models.br The iPhone (ten-S) Xs is equipped with a five-point-eight inch screen,... the same dimensions as last year's iPhone (ten)X, but with various upgrades.br Apple is also rolling out its largest smartphone to date: the iPhone (ten-S-Max)Xs Max.br It packs a six-point-five inch screen... and it's the most expensive of the new releases.br The third new model,... the iPhone (ten-R) XR,... comes in colorful aluminum finishes and features a six-point-one inch.. edge-to-edge display.br Apple also unveiled a new version of the Apple Watch equipped with better fitness tracking and new health features.