Cheapest SIM only mobile $5 phone subscription for people less than 60 years old in Singapore.

For people under 60 years old in Singapore looking for a budget plan directly from the four main telcos, the cheapest general public SIM-only options range from $5.00 to $24.50 per month. [1, 2, 3]

While three of these telcos (Singtel, StarHub, and M1) charge a higher baseline for their main-brand postpaid plans, SIMBA leads the entire market for affordable all-inclusive mobile subscriptions. [1, 2, 3, 4]

The absolute cheapest SIM-only plans from each of the four telcos for the general public under 60:

Telco	Cheapest Sub-60 Plan Name	Monthly Price	Data & Key Entitlements	Plan Type
SIMBA	Data-Only Plan	$5.00 / 30 days	500GB local & regional data (Shared across SG, Malaysia, Indonesia, Thailand, HK)	Postpaid Data-Only (No bundled talktime/SMS)
SIMBA	5G Best Value	$10.00 / 30 days	500GB 5G data, Unlimited local mobile calls & SMS, Free voice roaming	Postpaid Voice + Data
StarHub	5G Data Only Core	$5.00 / month	20GB 5G data	Postpaid Data-Only (No bundled talktime/SMS)
M1	Bespoke SIM-Only (Promo)	$11.95 / month (U.P. $14.95)	300GB 5G data, 1,000 mins talktime, 1,000 SMS, Unlimited weekend data	Postpaid Voice + Data
StarHub	5G Lite	$22.00 / month	150GB 5G data, 1,000 mins talktime, 750 local SMS	Postpaid Voice + Data
Singtel	5G+ Enhanced Lite	$24.50 / month	300GB 5G+ data, Includes local talktime/SMS bundles	Postpaid Voice + Data

Key Caveats & Trade-offs

• Data-Only Pitfalls: The $5 plans from SIMBA and StarHub are purely for data. If you need standard cellular voice calls or traditional outgoing SMS text messages, you will need to choose the voice-inclusive plans starting at $10 to $11.95. [1, 2, 3, 4]
• Sub-Brands/MVNOs: If you want Singtel or StarHub's networks but at cheaper "Voice + Data" price points, look into their respective sub-brands: GOMO by Singtel ($10.18–$15.99/mo) or giga! by StarHub ($10.90–$15.99/mo). [1, 2]

Would you like me to look into the sub-brands (like GOMO, giga!, or Maxx) for cheaper voice options on the major networks, or do you want to compare the roaming capabilities of these $5 and $10 plans?

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