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SGBook Singapore Living Guide/Singapore SIM/eSIM and Internet Setup for New Arrivals

SIM / eSIM / Internet

Singapore SIM/eSIM and Internet Setup for New Arrivals

Phone setup gates everything: rental viewings, OTPs, navigation, banking, and everyday admin. In 2026 Singapore also tightened anti-scam SIM registration controls, so the safer path is not “open more lines”; it is get one working line, test coverage, then stabilise your long-term OTP number.

Make one decision first: prepaid or SIM-only

If you don’t have a FIN or stable local address yet, start with prepaid (or a tourist eSIM) to unlock data + OTPs. Move to a SIM-only plan once your documents are settled.

Option Best for Budget range Note
Prepaid / tourist eSIM Just arrived, documents pending, immediate data + OTPs ~S$8–30 per 28–30 days (varies by promo) Validity, re-registration needs, and real-world coverage matter more than headline data.
SIM-only (no contract / short contract) FIN/pass ready; staying longer-term ~S$10–80/month (wide range by tier) Better long-term stability; test coverage before porting your main number.
Home broadband (later) Once your rental is stable; reliable home connection ~S$30–60/month (depends on contract/promos) Check installation approval, contract length vs lease, and appointment timing.

What to bring (shop or online)

  • Passport + (if available) a valid pass / FIN details.
  • Your old number to keep receiving key OTPs temporarily.
  • Unlocked phone + eSIM compatibility (if you want eSIM).
  • A usable card for online sign-up, or some cash for retail purchase.
  • A temporary address (hotel/short stay) for registration and delivery.

First-week workflow (safe and boring, but works)

  • Day 0-1: buy a prepaid SIM or tourist eSIM so you have data + OTP access.
  • Day 1-3: test signal at the places you actually use (home/work/MRT). Don’t port your main number yet if coverage is bad.
  • After you get a FIN / pass: switch to SIM-only for long-term value and easier renewals.
  • Final step: migrate 2FA/OTP numbers to your long-term line, and keep the old number as a backup for a while.
  • If you already have several numbers: audit what each line is used for before opening another one.

SIM setup planner: choose the lower-regret path

This tool does not recommend a telco. It helps you decide whether to start with prepaid, move to SIM-only, or pause and audit your registered lines first.

Suggested path

Start with prepaid / tourist eSIM

Best when you have just arrived, have no FIN yet, or your address is not stable. The job is data, OTPs, maps, and viewings.

Next steps

  • Open one primary line only and save registration/T&C screenshots.
  • Test real coverage at home, work, and MRT interchanges within 3 days.
  • Once FIN is ready, decide whether to move to long-term SIM-only.

Watch-out: Passport-registered prepaid SIMs may have validity limits; follow telco terms early if you want to keep the number.

Watch-outs

  • Passport-registered prepaid SIMs may only be valid for 30 days; keeping the number can require updating/re-registering with a Singapore-issued ID in time.
  • From 28 February 2026, individuals can register up to 10 new postpaid SIM cards in total across all telcos; audit existing lines before opening more.
  • There can be limits on how many prepaid SIMs one ID can register—avoid opening multiple “backup” SIMs too early.
  • Huge data allowances don’t guarantee indoor coverage; test basements, older buildings, and MRT interchanges.
  • If you use traffic-camera or border-routing apps, note that LTA/OneMotoring says only selected Woodlands, Tuas, and Sentosa Gateway cameras remain from 30 June; mobile data alone does not guarantee every travel feed stays available.
  • Check add-ons like caller ID, roaming, and IDD. Don’t overpay for features you won’t use monthly.

Tip: treat your number as an identity tool

  • Bind bank/government/rental accounts to one long-term number.
  • Before changing numbers, ensure OTPs, transfers, and 2FA won’t break.
  • Treat passport-registration validity as a hard constraint and verify in T&Cs.

Sources and verification links

SGBook summarises practical planning ranges and links back to official sources so you can verify before making decisions.