Choose the type first. The Radiant and Eva are infrared and bring grills. The Acer Plus, Prime and Brio Plus are induction stoves.
Then look at the presets. The Prime states seven. The Brio Plus states a menu without a number. The other three state none.
Safety features differ. The Eva and Radiant list overheat protection and cool-touch surfaces. The Prime and Brio Plus list high voltage protection. The Brio Plus lists a child lock. Pigeon also says a heavy-duty cooling fan keeps the circuitry of the Eva cool.
Auto shut-off is listed on four of the five. Only the Acer Plus page leaves it out. Display detail is uneven. The Acer Plus and the Prime list a 7-segment display. The Brio Plus lists an 8-segment display. The two infrared models list no display.
Warranty is the same wherever one is given. Pigeon gives 1 year and limits it to manufacturing defects. The Acer Plus page does not state a warranty.
For rivals, see best prestige induction cooktop, best philips induction cooktop and best bajaj induction cooktop. The best induction cooktop brands guide compares all of them.
The main trade is between presets and extras. The Prime offers a preset count. The Radiant and Eva offer a grill. The Brio Plus offers a child lock and pause. The Acer Plus offers a display and a shock-proof body, but states little else.
Match the model to the feature you want. The Prime is the one that states a preset count, at seven. The 2100 W Brio Plus gives the most power. For barbecue and tandoor-style cooking, the Eva or the Radiant ships with a grill.
Check that the listed details answer your questions. Pigeon states voltage only on two models, display on three, and presets on one. The pages give no body size for any model, so check the retailer listing for counter space. The retailer page may carry more than Pigeon's product pages.