How do I activate an eSIM on iOS?

On iPhone: Go to Settings > Cellular > Add eSIM. Scan the QR code provided by your carrier or paste the activation code. Once added, make sure to enable Data Roaming for the eSIM only. If no service appears, toggle Airplane Mode for 10 seconds and try again.

How do I activate an eSIM on Android?

On Android: Go to Settings > Network & Internet > SIMs > Add eSIM. Choose to scan the QR code or enter the activation code manually. Once added, set the eSIM as your Data SIM and enable Mobile Data. Some devices may require a restart for the eSIM to be fully activated.

Can I keep my physical SIM active while using an eSIM?

Yes, you can keep your physical SIM active for calls and SMS while using the eSIM for mobile data. Most devices allow you to select which SIM handles data, calls, or texts separately.

What should I do if my eSIM does not activate?

If your eSIM fails to activate, double-check the QR code or activation code. Ensure your device is connected to Wi-Fi during activation. Restart your device, and if it still doesn’t work, contact your eSIM provider for troubleshooting or request a replacement QR code.

Best eSIM for Singapore (2025) | Marina Bay, Sentosa & Changi Travel

Quick Answer: Traveling to Singapore in 2025? Whether you’re visiting Marina Bay Sands, exploring Gardens by the Bay, or connecting flights at Changi Airport, an eSIM is the easiest way to get mobile data instantly. Skip local SIM cards — activate online, scan a QR code, and enjoy fast 4G/5G coverage across the city. This guide reviews the best eSIMs for Singapore with updated plans and providers.

Why choose an eSIM in Singapore?

Buy and activate before landing at Changi Airport (SIN).
Reliable internet for maps, Grab rides, and food delivery apps.
No queues at SIM card kiosks.
Keep your WhatsApp number active.

Top eSIM Providers (2025)

Airalo — affordable Asia eSIMs starting at $5.
Holafly — unlimited data for frequent users.
Nomad — regional Asia-Pacific bundles (covering Singapore + Malaysia, Thailand, etc.).

Singapore eSIM Plans & Prices (2025)

Provider	Plan	Price (USD)	Validity	Best for
Airalo	1–3 GB	$5–$9	7–15 days	Short business trips
Airalo	5–10 GB	$13–$20	15–30 days	Tourists
Holafly	Unlimited-style	$29–$69	5–30 days	Heavy data users
Nomad	APAC bundle (5–15 GB)	$15–$32	7–30 days	Multi-country Asia trip

Coverage & Local Networks

Singapore’s mobile networks are known for speed and reliability:

Singtel — strongest coverage, great speeds everywhere.
StarHub — reliable 4G and growing 5G support.
M1 — affordable and wide coverage.

Most eSIMs connect through Singtel or StarHub, ensuring high-speed service across the city, even underground MRT stations.

Setup Guide

Buy eSIM from Airalo, Holafly, or Nomad.
Receive QR code instantly.
On iPhone: Settings → Cellular → Add eSIM. On Android: Settings → Network → Add eSIM.
Scan QR code and select as Data SIM.
Enable Data Roaming for the eSIM.

Which plan should you choose?

3–5 days: Airalo 1–3 GB.
1–2 weeks: Airalo 5–10 GB or Nomad bundle.
1 month: Holafly unlimited-style.

Tips to Save Data

Download Google Maps offline for the city center.
Use free Wi-Fi at malls, MRT stations, and airports.
Stream videos on lower quality.

FAQs

Does Singapore have 5G? Yes — Singtel, StarHub, and M1 all offer 5G in 2025.

Can I hotspot? Yes, Airalo & Nomad allow tethering. Holafly may have restrictions.

Do eSIMs include a local number? No, they’re data-only. Use WhatsApp for calls/messages.

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Disclosure: Some links may be affiliate. Prices updated for 2025.