????表盤的右側(cè)有兩個(gè)按鈕——一個(gè)被稱為“數(shù)碼表冠”的撥盤，撥盤的操作很像人們過去用來給手表上發(fā)條的表冠。不過，對于蘋果智能手表而言，撥盤是用來導(dǎo)航屏幕菜單的。將撥盤向左或右旋轉(zhuǎn)，可以將主屏幕上顯示的應(yīng)用放大或縮小。同時(shí)，按下?lián)鼙P下面的按鈕，將會(huì)顯示好友和家人的簡要列表。

????蘋果宣稱，這款功能會(huì)在那些希望快速找到通訊錄的人中大受歡迎。比如，蘋果公司運(yùn)營高級副總裁杰夫?威廉姆斯（Jeff Williams）使用手表測量心跳，然后將心跳數(shù)據(jù)發(fā)送給他的一個(gè)朋友——比如當(dāng)時(shí)正在臺(tái)上的蘋果互聯(lián)網(wǎng)軟件和服務(wù)高級副總裁埃迪?庫埃。

????在現(xiàn)實(shí)世界中，我從未見過用這種方式來分享脈搏跟蹤數(shù)據(jù)的情況，但是，如果我想在出去慢跑的時(shí)候向朋友口授一個(gè)文本，這個(gè)功能就十分有用了。蘋果還花費(fèi)大量的精力制作了兩款新的健康應(yīng)用程序——一款用于跟蹤用戶每天的活動(dòng)，另一款用于跟蹤特定的活動(dòng)（比如5公里跑）——但是我未能測試這兩款應(yīng)用程序。

????On the right side of the watch face are two buttons — a dial called the “digital crown,” which operates a lot like the crowns people used to wind up their old watches. Only here, that dial helps to navigate menus on the screen. Screwing the dial left and right zooms in and out on the apps featured on the main screen. Meanwhile, pressing a button below the digital crown brings up a brief list of favorite friends and family members.

????Apple argues this feature will become popular with people seeking a shortcut to quickly their contact list. As an example, Apple SVP of Operations Jeff Williams measured his heartbeat with a watch and sent it to one of his buddies, in this case, Apple SVP of Internet Software and Services Eddy Cue, who was onstage.

????In the real world, I can’t see pulse-tracking being shared this way at all, but I can see this becoming useful if I want to dictate a text to a friend while out jogging. Apple also made a big deal over two new fitness apps — one for tracking my movements everyday, the other for tracking specific activities like a 5-mile run — but I wasn’t able to test those out.