We cut through the jargon to help you compare prepaid plans, pick the right SIM card, and top up without the hassle.
Real, up-to-date guidance for residents, travellers, and expats across two of Southeast Asia's most dynamic telecoms markets.
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Pick your destination and find expert guides, SIM reviews, and top-up tips tailored to each market.
Compare Singtel, StarHub, M1, and MVNOs — get the fastest data, best value, and easiest top-up options for locals and travelers alike.
Navigate Telkomsel, Indosat, XL, and more — find the right prepaid plan, reload methods, and coverage maps for every island.
All guides updated regularly by our editorial team — last reviewed January 2026.
Operator comparisons, eSIM walkthroughs, top-up tutorials, and data guides — handpicked for Singapore and Indonesia.
Singtel, StarHub, and M1 have all revamped their prepaid and postpaid plans this year. We break down data caps, roaming perks, and hidden fees so you can pick the right SIM without the guesswork.
Rachel Tan
June 12, 2025
eSIM adoption in Indonesia is accelerating fast. Our step-by-step walkthrough covers activating an eSIM on all three major networks, including tips for tourists arriving at Soekarno-Hatta and Ngurah Rai airports.
Budi Santoso
June 8, 2025
Missed a top-up while abroad? Singtel's remote reload options have expanded dramatically. From PayNow to international credit cards via the My Singtel app, here's every method that actually works in 2025.
Rachel Tan
May 30, 2025
We ran 200+ speed tests across Jakarta, Surabaya, Bali, and Yogyakarta. The results might surprise you. Indosat has closed the gap significantly since the merger, and in some cities it now edges ahead.
Dewi Arimbi
May 22, 2025
Mobile virtual network operators promise big data at low prices. But how do they hold up for everyday use? We tested three popular Singapore MVNOs over 30 days to find out who delivers on their promises.
James Loh
May 15, 2025
Heading to Singapore from Indonesia? XL Axiata's international roaming bundles have improved a lot in 2025. We cover pricing, activation steps, data speeds you can realistically expect, and how it compares to buying a local SIM.
Dewi Arimbi
May 5, 2025
Select a topic to explore guides, reviews, and tips for Singapore & Indonesia mobile networks.
Singapore's prepaid SIM market has never been more competitive. With Singtel, StarHub, and M1 all rolling out upgraded plans for 2026, choosing the right card can save you real money — or cost you in dead zones and throttled speeds. We tested all three operators across MRT tunnels, Changi Airport, Orchard Road, and the CBD over four weeks, comparing data speeds, roaming add-ons, top-up flexibility, and value for money. Whether you're a tourist passing through, an expat settling in, or a local who just wants a no-contract fallback SIM, this is the definitive breakdown you need before you buy.
Jamie Tan
Senior Telecom Editor
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sm-topup was born out of frustration. Navigating mobile plans in Singapore and Indonesia shouldn't require a law degree — yet telco fine print, hidden fees, and opaque coverage maps make it feel that way. We're a small, independent team of tech journalists and long-time expats who decided to cut through the noise.
Every review, comparison, and guide on sm-topup is researched independently. We accept no sponsored rankings, no operator payments, and no affiliate pressure that could skew our advice. Our only commitment is to give you clear, honest, up-to-date information — whether you're choosing a SIM for daily commuting in Jakarta or hunting the best roaming deal in Singapore.
Independent editorial team
Singapore & Jakarta-based writers
Your trusted guide to mobile operators, SIM cards, and prepaid plans across Singapore and Indonesia.
© 2026 sm-topup. All rights reserved.
Independent editorial guide. Not affiliated with any mobile carrier. Information is provided for informational purposes only.