Lenovo has revealed its new flagship handset, the Moto Z. Wiping the Moto X away, this new generation of super smartphones not only offers top-draw specs, it also offers an ecosystem of modular accessories - Moto Mods.

There are two handsets, however, the Moto Z and the Moto Z Force. They look the same and in many ways they are the same, but they're two different handsets.

So, to save you the bother of scouring the spec sheets, we're spun through to pull out all the differences for you.

The Moto Z and Moto Z Force speak the same design language, offering premium metal bodywork made from military-aircraft grade aluminium and stainless steel. The looks are the same, with a wide range of colour options available from Moto Maker, but one is thicker than the other.

The Moto Z measures 153.3 x 75.3 x 5.19mm and weighs 136g, while the Moto Z Force is the bigger and heavier device: it measures 155.9 x 75.8 x 6.99mm and weighs 163g.

Neither phone has a 3.5mm headphone socket, instead offering a USB Type-C connection for audio, data and charging. Both are compatible with the Moto Mod accessories and both have a nano-coating for water protection.

Both the Moto Z and the Moto Z Force offer a 5.5-inch AMOLED display, with a Quad HD resolution. That means 2560 x 1440 pixels, resulting in 534ppi. That's sharp, meaning both devices should be superb when handling your content, offering that typical AMOLED pop for nice vibrant colours.

However, while the Moto Z is topped with Gorilla Glass, which is pretty common, the Moto Z Force, as the name suggests, is extra-protected with Moto's ShatterShield display. This is designed to be incredibly tough, so you don't break your phone when you drop it.

On the hardware front, both devices are powered by the Qualcomm Snapdragon 820 chipset with 4GB of RAM, so the performance should be matched when it comes to use.

Both will offer 32 of 64GB of storage, we guess through Moto Maker, although both also offer microSD expansion. In that sense, the experience is again very much the same when it comes to speed, apps, and gaming.

However, the Moto Z only has a 2600mAh battery thanks to that slim waistline, with Moto saying you'll get 30 hours of use from it. The Moto Z Force, however, uses its increased heft to pack in a 3500mAh battery, promising 40 hours of use.

Both offer TurboPower charging, so you'll be able to get most of the day from 30 mins connected to a charger, but the Z Force is going to last longer.

While you might think that offering a larger battery was enough, the Moto Z and the Moto Z Force differ in the camera department too. Both offer a 5-megapixel front camera with flash for selfies, so that's pretty much the same.

However, the Moto Z settles for a 13-megapixel rear camera, with optical image stabilisation and laser autofocus. That sounds pretty good, but the Moto Z Force swings in with a 21-megapixel sensor, again offering OIS and laser autofocus, but also adding phase detection autofocus to the mix too.

The Moto Z and Moto Z Force both offer a great design and a compelling load-out on the spec sheet. Both of these handsets are premium flagship devices. Where the Moto Z is lighter and thinner, the Z Force fills that additional space with battery, so it's going to last longer, it's as simple as that.

The Moto Z Force is also likely to survive drops better, thanks to that ShatterShield protection on the display.

Elsewhere the camera differences might not be so dramatic and it's too early to know how the camera performance is going to differ between these models.

Of course, we don't yet know what the difference in price is going to be. It might be that you can by the Moto Z, add a Moto Mod battery pack and be perfectly happy.

The Moto Z launches as a Droid Edition on Verizon in the summer, the international availability won't be until September 2016.

READ: Motorola Moto Z and Moto Z Force: Everything you need to know

Motorola Moto Z review: A modular muddle