Starhub also has 4 new plans for the seniors. All plans come with FREE Caller Number Display 

Offer is also applicable for persons with disability or hearing/visually impaired.

The best plan should be the S$8/mth for 5 GB which comes with 350 minutes of talktime. The plan will reversed back to 1 GB data and 50 minutes after the 12 month.

PlanPlan Bundle
$8 SIM Only (no-contract) plan
5GB (1GB + FREE 4GB)350 mins (50 mins + FREE 300 mins) 
$20 (U.P. $25) SIM Only 1-year plan30GB (5GB + FREE 25GB)
FREE unlimited talktime
$40 (U.P. $55) 2-year plan
15GB (5GB + FREE 10GB)
FREE unlimited talktime
 
$60 (U.P. $80) 2-year plan  40GB (30GB + FREE 10GB)
FREE unlimited talktime

M1’s plan

TPG’s plan