Motorola got many positive reviews for its round-dial Moto 360 smartwatch; the company is looking to continue the excitement with its second-generation smartwatch. The rumoured Moto 360 Gen 2 is expected to arrive in two screen sizes and the first look of the smaller variant was leaked by HelloMotoHK on Google+ on Thursday.

Dubbed Moto 360S, the smaller dial was pictured alongside the original Moto 360, giving a better comparison of how the new smartwatch will look on a wrist. The leaked image does not give away anything more than just the outlook design and the brief post reads, "#Moto360 vs #Moto360S."

Looking closely at the smaller Moto 360 smartwatch, it is evident the new model has a more refined finish with larger lugs connecting the straps. The smartwatch's crown has also been shifted slightly towards the upper side (2 o'clock) instead of taking the right end (3 o'clock) postition of the circular smartwatch.

Previously, The Verge also reported that the Moto 360 Gen 2 will come in two variants, Moto 360L and 360S. These names were spotted in the company's regulatory filing with the Brazilian telecom agency Anatel but it remains unknown if these are the official names of the new smartwatch.

The leaked documents also revealed that the Moto 360S will pack a 270mAh battery while the 360L will have a 375mAh battery. Comparatively, the original Moto 360 features a 320mAh battery.

In a separate leak, Motorola accidently dropped a video showing the Moto 360 Gen 2 on Twitter and quickly deleted the post. However, 9to5Google grabbed the video before it was pulled down to confirm details such as the flat tyre design, larger lugs and the relocated crown.

As usual, Motorola hasn't confirmed the new Moto 360 smartwatch but it is expected to be launched at the IFA 2015 trade show in Berlin next month.