Pick the type first. The IRX 220F is infrared and comes with a grill. The other four are induction.
Then pick the wattage. The Splendid draws the least and the IRX 220F draws the most.
Count the presets. The 160TS Neo lists nine. The ICX 200FP lists eight. The two smaller stoves list seven. The IRX 220F lists three.
Check the extras. Keep warm is on the 160TS Neo and the ICX 200FP. Only the IRX 220F and the ICX 200FP name their controls.
Every Bajaj page lists a 1-year warranty. The four induction stoves also list the Voltage Pro feature.
Cookware and accessories vary. Bajaj says the IRX 220F is suitable for all metal utensils. Its box holds the cooktop, a manual, a warranty card, a BBQ grill and two skewers. The other four pages list no cookware or box contents.
For other makers, read best prestige induction cooktop, best philips induction cooktop and best pigeon induction stove. The best induction cooktop brands page compares all four.
Bajaj describes its range with a shared vocabulary. Each page says the timer and temperature settings are adjustable. Each page lists a digital display with an error code communicator. Four list a pan sensor.
Because the shared features are so alike, the real differences are wattage, preset count and the extras. Keep warm appears on two models. A grill set appears on the infrared model only. Two models name feather touch controls. The other three leave controls out.
Think about power levels too. Only the IRX 220F lists them, at 11 levels. The induction stoves list adjustable time and temperature settings instead. That makes the infrared model the one to pick for fine steps. The four induction stoves suit cooks who prefer to set a time and a temperature and leave the pan.
For grilling, the IRX 220F is the only model that ships with a grill and skewers. The ICX 160TS Neo and the ICX 200FP give more power and presets than the two smaller stoves.
Bajaj gives no detail on spike protection or voltage for any of them, so check the retailer page if those details matter to you.