Managed to get the $1 plan last year. Saw 5G add-on $10 itchy hands try. 5G coverage non-existent in neighbourhood HDBs and thought this is a dud.
Then I discovered their 5G coverage actually inside shopping centres. My limited DPs are Vivocity, Plaza Singapura, Woodleigh Mall and Raffles City. Below snip taken at Woodleigh Mall.
Speeds maxed out at low 100s (usually high double digits) with latency around 25ms.
iPhone 15 Pro.
Tested alongside SIMBA 5G. Mostly and surprisingly, SIMBA performed better.