6. Motorola Moto Z
The world's thinnest smartphone is also the best modular phone
Weight: 136g | Dimensions: 153.3 x 75.3 x 5.2 mm | OS: Android Marshmallow | Screen size: 5.5-inch | Resolution: 1440 x 2560 | CPU: Snapdragon 820 | RAM: 4GB | Storage: 32/64GB | Battery: 2600mAh | Rear camera: 13MP | Front camera: 5MP
Moto Z takes the modular accessory idea we liked so much about the LG G5 and actually makes it work with better add-ons and an easier-to-use snap-on design.
It's an Android phone that performs well right now and the potential behind its future accessories hold a lot of promise down the road.
Usually when we talk about mid-cycle upgrades, we're strictly talking about new software. Moto Z could take on new form at any time.
It may be the world's thinnest phone, but that comes at a cost with a reduction in battery size and the loss of the headphone jack - potential issues for some users.
But if you can overlook these shortcomings then good news: you'll have a truly innovative device in your hands.
Read the full review: Motorola Moto Z
Also consider: The only phone which comes close to matching the Z's modular capabilities is the LG G5, although it's the Moto which has the more intriguing line up of mods. The LG is potentially a better all-round device, and it does have a headphone jack.