5G
Singtel vs StarHub 5G: Speed Tests in 2025
We ran 200+ real-world speed tests across CBD, HDB estates, and MRT tunnels to find out who actually delivers on their 5G promise.
KL
Kai Lim
12 Jun 2025
8 min read
Singapore Telecom Intelligence
Singapore's Mobile World, Fully Unpacked.
smrtopup is your plain-English guide to everything that runs Singapore's mobile landscape — from the underground fibre routes powering our 5G rollout to the exact steps for topping up your prepaid SIM.
We cover Singtel, StarHub, M1, and all major MVNOs — network infrastructure, 5G band maps, top-up walkthroughs, and fair comparisons. No jargon. No fluff.
4 MNOs + 8 MVNOsNetworks Covered
SA & NSA Mapped5G Bands Documented
12+ WalkthroughsTop-Up Methods
Editorial Pillars
What We Cover
smrtopup is Singapore's most detailed independent resource for mobile network education. Three core topics. Zero fluff.
Explore all guides →
01Networks & Operators
Singapore Mobile Landscape
Four Operators. One Smart City. Infinite Confusion — Solved.
Singapore runs on four major MNOs — Singtel, StarHub, M1, and TPG — each with their own MVNOs, plan tiers, and network quirks. We map out exactly how local spectrum allocation works, who owns what infrastructure, and how to read between the lines when operators advertise 'unlimited' data. No jargon. No spin.
4 MNOsfully covered
Read guides
025G Technology
5G in Singapore
Real Speeds. Real Coverage. What 5G Actually Means for You.
The hype is loud. The truth is more nuanced. We break down how Singapore's 5G SA and NSA deployments differ, where mmWave vs Sub-6GHz signals reach, what realistic download speeds look like on the MRT vs Orchard Road, and which SIM cards actually unlock 5G on your device.
200+ Mbpstested real-world
Read guides
03Top-Up Methods
Top-Up Masterclass
Every Method. Every Operator. Zero Guesswork.
Top-ups shouldn't require a tutorial — but in Singapore, they do. From 7-Eleven scratch cards to Singtel's app, AXS machines to PayNow transfers, we document every reload method for every prepaid and postpaid plan, with step-by-step screenshots, fee breakdowns, and which method is fastest in a pinch.
12+ Methodsdocumented & tested
Read guides
All guides are independently researched and updated regularly. Not sponsored by any operator.
Featured Article
Network Architecture
12 min read·June 2025·smrtopup Editorial
How Singapore's
Mobile Network Works
Singapore's mobile landscape is one of the most densely covered in the world — but how exactly does it work under the hood? From spectrum allocation by IMDA to the way Singtel, StarHub, and M1 carve up frequencies across 700 MHz, 2.1 GHz, and the blazing 3.5 GHz 5G band, the architecture behind your signal is more deliberate than you might think.
Spectrum · Coverage · Operators
Free to read · No signup required
Latest Articles
Fresh from the
smrtopup desk
Guides, breakdowns, and real-world tests — updated weekly to keep you ahead of Singapore's fast-moving telecom landscape.
Top-Up
How to Top Up Your SIM at Any 7-Eleven in Singapore
7-Eleven has over 400 outlets island-wide. Here's the exact process for topping up Singtel, StarHub, M1, and prepaid MVNOs at the counter.
PN
Priya Nair
8 Jun 2025
5 min read
5G
What is NSA vs SA 5G and Why It Matters for Your Phone
Non-Standalone and Standalone 5G are fundamentally different architectures. Understanding which one your plan uses explains a lot about your real speeds.
KL
Kai Lim
3 Jun 2025
7 min read
Top-Up
M1 Prepaid Top-Up via PayNow — Step-by-Step
PayNow makes M1 prepaid top-ups instant and fee-free. Walk through the exact steps in DBS, OCBC, UOB, and PayLah to add credit in under a minute.
PN
Priya Nair
28 May 2025
4 min read
Network
Understanding Singapore's 700 MHz Band for Rural Coverage
The 700 MHz spectrum band is why your phone still works inside Jurong Bird Park or at Sungei Buloh — here's the physics and policy behind it.
WJ
Wei Jing
20 May 2025
6 min read
Network
MVNO Explained: Is Circles.Life Worth It?
MVNOs lease network capacity from major operators and sell it cheaper. Circles.Life is Singapore's boldest example — but the trade-offs are real.
WJ
Wei Jing
14 May 2025
6 min read
Quick Reference
Top-Up Methods at a Glance
Not sure how to reload your prepaid SIM? Scan the table below to instantly find which channels your operator supports.
| Operator | App | Website | ATM | 7-Eleven / Cheers | PayNow |
|---|---|---|---|---|---|
Singtel | |||||
StarHub | |||||
M1 | |||||
TPG Telecom |
Supported
Not Available
Data accurate as of June 2025. Availability may vary — visit the Full Top-Up Guide on smrtopup for the latest details.
PayNow is the fastest cashless option — all four major operators accept it instantly, 24/7, with no service fee.
ATM top-ups are only available for Singtel and StarHub via DBS, POSB, OCBC, and UOB machines island-wide.
Signal Science
How 5G Signals Travel
Through Singapore
Not all 5G is equal. mmWave and Sub-6GHz bands behave very differently across our dense urban landscape — here's the physics, visualised.
mmWave
24–100 GHz · Short range · Ultra-fast
Sub-6GHz
700 MHz–6 GHz · Wide coverage · Balanced
What 5G Actually Means For You
Four pillars that make 5G a generational leap
Read the 5G Deep DiveCovers all four Singapore operators —
Singtel, StarHub, M1 & SIMBA
Singtel, StarHub, M1 & SIMBA
Monthly Digest
Get the Latest SG Telecom Updates
Stay ahead on Singapore's 5G rollout, network changes, and top-up tips — delivered straight to your inbox. One clean digest, once a month.
No spam. One digest per month. Unsubscribe anytime. By subscribing you agree to our Privacy Policy.
smrtopup
Singapore Mobile Explained — Networks, 5G & Top-Ups Demystified. Your plain-English guide to the Lion City's telecom landscape.
© 2026 smrtopup. All rights reserved.