The iPad Pro pricing is out for all three telcos. From my comparison, Singtel plans are more complicated with lesser options. For Singtel, there are option to have a low one time payment for the tablet but with recurring monthly for the tablet and the mobile subscription plan. For StarHub and M1, the plans are straightforward.
All the plans come with 24 months contract. Below is the overall view of the pricing. Do note that this table is NOT extensive. It does not show details like SIM card purchase, VAS and etc. And there are terms and conditions from each Telco. Do check on each Telco for more information. Click on the image to enlarge.
Overview of 3 Telcos Price Plans
To make it more visible, check out the individual price plan.
Singtel Price Plans
M1 Price Plans