I was surprised to see the iPhone 7 has Bluetooth 4.2.
Having a 6S, I just thought the Bluetooth 5 Airpods would be timed to be released with an iPhone also having Bluetooth 5.
So does this mean if next years iPhone has Bluetooth 5, we can expect even better range & robust signal from phone to Airpods since the jump from Bluetooth 4.2 to 5 is meant to be a significant one?
Not necessarily. I believe that since Apple sits on the board of the BT SIG, and helped develop BT 5, that the W1 chip represents many of the things they intend to implement in BT 5, a draft prototype if you will. And given that it's a custom chip, can be upgraded to BT 5 standards with a firmware upgrade.
However, if I'm wrong, and the AirPods are limited to BT 4x standards, then upgrading the iPhone to 5x won't likely improve the AirPods performance.
Then again, if BT 5 is backward compatible with 4x devices with respect to range, then I don't see why there won't be some increased range, with the phone providing most of the heavy lifting. Certainly to the extent Apple baked in any BT 5 tech into the AirPods, they are more likely to take advantage of any such legacy capability compared to a standard BT 4x device.
It's hard to imagine Apple is releasing something that will be surpassed in a year, and the W1 chip certainly provides hope that the AirPods have a degree of future proofing, but then again it wouldn't be the first time Apple left the first generation of early adopters behind.