If you’ve been hunting for a no-contract mobile plan in Singapore, giga’s name keeps popping up alongside promises of generous data and free roaming. But one question trips up almost everyone: who actually owns giga? This guide settles the ownership question once and for all, then lays out exactly how giga stacks up against its biggest rival, GOMO, and even its own parent company, StarHub.

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Parent Telco: StarHub ·
Cheapest Plan: $10.90 for 10GB ·
Largest Plan: $19.90 for 500GB ·
Monthly Roaming Data: 19GB ·
Contract: No contract ·
Data Rollover: Yes

Quick snapshot

1Ownership & Network
2Plan Flexibility
  • Plans from $10.90 to $19.90 (giga mobile plans page)
  • 500GB high-tier plan at $19.90 (giga mobile plans page)
  • Data rollover included (giga’s own comparison blog)
3Target Audience
  • Budget-conscious users
  • Light to heavy data users
  • Those seeking no-frills, online-only experience
4Key Features

Six quick facts that define giga’s position in Singapore’s mobile market:

Attribute Value
Parent Telco StarHub
Cheapest Plan $10.90 for 10GB
Largest Plan $19.90 for 500GB
Roaming Data 19GB/month included
Contract None
Data Rollover Yes

The pattern so far: giga is built around maximum data at minimum cost, with no contract strings attached.

Is giga under StarHub or Singtel?

Giga is unequivocally a digital brand of StarHub. The official giga website (StarHub’s digital telco) states: “giga runs on StarHub’s network, one of Singapore’s top telcos!” Every giga plan, whether 4G or 5G, uses StarHub’s infrastructure.

What network does giga use?

  • Giga operates on StarHub’s 4G and 5G networks (StarHub Corporate Newsroom)
  • All plans are SIM-only with eSIM support (giga mobile page)
  • In May 2024, StarHub announced three new giga 5G eSIM plans with free monthly roaming data (StarHub Corporate Newsroom)

Is giga a reseller?

Yes, in the sense that giga is a Mobile Virtual Network Operator (MVNO) brand wholly owned by StarHub. It uses StarHub’s licensed spectrum and infrastructure, but operates as a separate digital-only brand with its own pricing, customer base, and no physical stores. Think of it as StarHub’s answer to the booming no-contract, online-only segment.

The implication: When you sign up for giga, you’re getting StarHub’s network reliability without the overhead of traditional postpaid contracts. The trade-off: you lose access to physical retail support and bundled perks like TV or broadband.

Which is better, giga or GOMO?

GOMO is Singtel’s digital brand, running on Singtel’s network (Singtel SIM Only plans). The two services are direct competitors, but with meaningful differences in pricing, data, and roaming.

What are the key differences?

  • Network: giga uses StarHub; GOMO uses Singtel (SingSaver comparison)
  • Entry price: giga starts at $10.90 for 10GB; GOMO’s cheapest plan is $20 for 20GB (SingSaver comparison)
  • Data rollover: giga includes free rollover; GOMO does not (giga blog)
  • Roaming: giga gives 19GB free monthly roaming data on all plans; GOMO offers 1GB roaming for selected plans (giga blog)
  • Top data tier: giga goes up to 500GB for $19.90; GOMO caps at 60GB for $30 (SingSaver comparison)

One pattern emerges across all five points: giga offers more data at lower price points than GOMO, plus the significant advantage of data rollover and generous roaming. GOMO’s edge lies in Singtel’s slightly wider 5G coverage footprint and the brand trust of Singapore’s incumbent telco.

Feature giga (StarHub) GOMO (Singtel)
Network StarHub 4G/5G Singtel 4G/5G
Cheapest plan $10.90 / 10GB $20 / 20GB
Largest plan $19.90 / 500GB $30 / 60GB
Data rollover Yes (up to 2 months) No
Free monthly roaming 19GB 1GB on selected plans
Contract No contract No contract
5G support Yes (eSIM) Yes (SIM + eSIM)

The pattern: giga wins on raw data value and roaming; GOMO retains appeal for those who prioritise Singtel’s coverage reputation.

Which has better value?

For the majority of users who prioritise raw data per dollar and roaming flexibility, giga delivers better value. GOMO makes sense if you need the absolute best coverage in remote areas or want the peace of mind of Singtel’s customer service reputation. But on a pure cost-per-GB basis, giga’s 500GB/$19.90 plan is in a league of its own.

The catch

Giga’s roaming data is shared from your local allowance, so heavy roamers might burn through the 19GB quickly if they also use lots of data at home. GOMO’s approach separates roaming data but offers far less.

Is giga better than StarHub?

This is a trick question — giga is StarHub, but aimed at a different audience. StarHub’s traditional postpaid plans (e.g., $25 for 20GB) often include perks like free caller ID and bundle discounts for broadband or TV. Giga strips away everything non-essential and sells pure data at rock-bottom prices.

Why choose giga over StarHub?

  • Cheaper entry point ($10.90 vs StarHub’s ~$25 minimum)
  • No contract — you can leave anytime
  • Generous roaming data included (19GB)
  • Data rollover — unused data carries forward

Who should pick StarHub?

  • Those who want physical store support
  • Users who bundle fibre broadband or TV for discounts
  • Heavy talk-time users (giga’s minutes can be limited on budget plans)

Upsides

  • Lowest price per GB in Singapore
  • Massive 500GB top tier
  • Free data rollover
  • 19GB roaming included

Downsides

  • No physical customer service
  • Roaming data shared with local allowance
  • Limited add-on bundles
  • No multi-line/family discounts

The trade-off: giga’s stripped-down model works best for data-first users who don’t need handholding or bundled extras.

Which telco does GOMO use?

GOMO uses Singtel’s network. It is Singtel’s digital-only brand, launched in 2018 to compete with the wave of MVNOs like giga and Circles.Life. All GOMO plans run on Singtel’s 4G and 5G infrastructure (Singtel SIM Only page).

Is GOMO owned by Singtel?

Yes, GOMO is fully owned by Singtel. It shares the same parent company as the main Singtel brand but operates with a separate pricing structure, no contract, and digital-only customer service.

The pattern: Both giga and GOMO follow the same playbook — a parent telco creates a low-cost, no-frills digital sub-brand to capture price-sensitive customers without cannibalising its premium postpaid base. Giga chose aggressive data bundling; GOMO opted for moderate pricing with Singtel’s coverage prestige.

What plans does giga offer?

Giga currently offers four main 5G SIM-only plans, all with no contract, free incoming calls, caller ID, and eSIM support (giga mobile plans).

What are the data allowances?

  • $10.90/month – 10GB local data + 19GB roaming
  • $14.90/month – 50GB local data + 19GB roaming
  • $17.90/month – 150GB local data + 19GB roaming
  • $19.90/month – 500GB local data + 19GB roaming

All plans include free data rollover (up to 2× the plan’s monthly data) and free incoming calls. Outgoing call and SMS are charged on a pay-as-you-use basis except for the highest tier which includes 800 minutes and 800 SMS (StarHub Corporate Newsroom).

Plan Local Data Roaming Data Minutes/SMS Price
giga! 10GB 10GB 19GB Pay-per-use $10.90
giga! 50GB 50GB 19GB Pay-per-use $14.90
giga! 150GB 150GB 19GB Pay-per-use $17.90
giga! 500GB 500GB 19GB 800 min + 800 SMS $19.90

The pattern is clear: more data, same roaming, same flexibility — the top tier offers the steepest discount per gigabyte.

Is there a plan with 500GB?

Yes, the $19.90 plan offers 500GB of local data plus 19GB roaming. It’s currently the highest data allowance among any Singapore MVNO at that price point. The 500GB tier also includes 800 talk minutes and 800 SMS, making it a strong option for heavy data users and frequent roamers.

Why this matters: For a heavy data user who consumes 15–20GB per month on their phone plus occasional tethering, the $19.90 500GB plan works out to about 4 cents per GB — unbeatable in Singapore’s prepaid/contract-free market.

The upshot

Giga’s plan ladder is simple: more data, same roaming, same contract-free flexibility. The jump from 10GB to 500GB costs only $9 more, making the top tier the best deal for anyone who wants to stop worrying about data limits.

Confirmed facts & what’s unclear

Confirmed facts

  • Giga uses StarHub’s network (giga official site)
  • Giga is a brand of StarHub
  • Plans start at $10.90 for 10GB (giga mobile page)
  • 500GB plan costs $19.90
  • Free data rollover is included (giga blog)
  • 19GB roaming data is included on all plans
  • GOMO uses Singtel’s network (Singtel SIM Only page)

What’s unclear

  • Exact 5G coverage footprint – StarHub doesn’t publish a detailed coverage map for giga specifically
  • Future plan pricing changes – giga reshuffled its tiers in 2024 and may do so again
  • Whether giga will introduce family or multi-line discounts

What users say

“giga runs on StarHub’s network, one of Singapore’s top telcos!”

giga official site

“Giga is parent of Starhub, Gomo is parent of Singtel.”

Corrected by Reddit user on r/singapore, 2024

Additional sources

teleinfotoday.com, asiaone.com, corporate.starhub.com, singtel.com, circles.life, giga.com.sg, singtel.com

Understanding which network supports giga is easier when you also look at how eight Telecoms ownership by StarHub fits into the same StarHub ecosystem.

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Frequently asked questions

Does giga have 5G?

Yes, giga launched 5G eSIM plans in May 2024 (StarHub Corporate Newsroom). All current plans include 5G access at no extra charge.

Can I keep my number when switching to giga?

Yes, giga supports number porting from any Singapore telco. The process is done online during sign-up and typically completes within 1 business day.

How does giga roaming work?

All giga plans include 19GB of free monthly roaming data that can be used in over 50 destinations. Roaming data is drawn from your local data allowance (the 19GB is a cap, not an extra pool).

Is giga good for heavy data users?

Yes, especially the $19.90 500GB plan. Even the $17.90 150GB plan is ample for most users. Combined with data rollover, heavy users rarely run out.

What is the difference between giga and Circles.Life?

Both are no-contract digital telcos. Giga runs on StarHub; Circles.Life uses M1’s network. Giga offers larger data caps (up to 500GB) and free roaming, while Circles.Life has more flexible customisation but smaller top tiers.

Does giga offer family or multi-line discounts?

No, giga does not currently offer multi-line or family discounts. Each line is managed independently.

How do I contact giga customer service?

Giga is digital-only. Support is via live chat on the website, email, or the giga app. There is no hotline or physical store.

Bottom line: Giga is StarHub’s digital MVNO, not Singtel’s. It beats GOMO on data value, rollover, and roaming, but GOMO wins on coverage breadth. For budget-conscious users in Singapore who want maximum data per dollar and don’t need physical stores, giga is the clear choice. For those who prioritise Singtel’s coverage or plan to bundle with fibre/TV, sticking with the parent telco may still make sense.

For any Singaporean weighing a switch between giga and GOMO, the decision hinges on one trade-off: giga’s superior data and roaming perks versus GOMO’s Singtel network reliability. With giga’s 500GB plan costing just $19.90, the choice for heavy data users is clear: switch to giga, or keep paying more for less with the incumbent.