Giga mobile plans review

By Nathan Lawrence

Last updated 16 November 2022

Giga SIM-only mobile plans review Singapore

Giga is a mobile provider in Singapore that sells a few SIM-only plans that operate on the StarHub 4G network. There are four main SIM-only plans on offer, which all operate on 30-day renewal cycles. All Giga mobile plans come with free caller ID, incoming calls and inbound SMS. Unlike its StarHub network owner, Giga doesn’t offer Corporate Individual Scheme (CIS) mobile plans.

Read on for a breakdown of each Giga plan and how they compare to competitors in Singapore. But before that, here’s all of Giga’s mobile plans, including any relevant Giga plans with a promotion (just look out for green ‘Deal’ text).

#1	Giga	Giga 20GB SIM Only 20GB data 300 Minutes 300 Messages $10.19 Min. cost $10.19 Go	$10.19 Min. cost $10.19	Go
#2	Giga	Giga 300GB SIM Only 300GB data 300 Minutes 300 Messages $15.28 Min. cost $15.28 Go	$15.28 Min. cost $15.28	Go
#3	Giga	Giga 300GB SIM Only 200GB data 800 Minutes 800 Messages $18.33 Min. cost $18.33 Go	$18.33 Min. cost $18.33	Go
#4	Giga	Giga 400GB SIM Only 400GB data 1000 Minutes 1000 Messages $20.37 Min. cost $20.37 Go	$20.37 Min. cost $20.37	Go

Giga SIM-only plans

The cheapest Giga mobile plan costs $10 per 30 days. It comes with 10GB of data, 500 minutes of outgoing calls and 500 outbound SMSes. This SIM-only plan also has 10GB of data rollover for up to two renewal cycles.

20GB SIM Only

20GB data
300 Minutes
300 Messages

$10.19

Min. cost $10.19

$10.19

Min. cost $10.19

Here’s how this cheap Giga SIM-only plan compares to other popular mobile plans with at least 10GB of data.

#1	SIMBA Editor's Pick	SIMBA Editor's Pick SuperRoam 12 SIM Only 250GB data Unlimited National Calls 100 Messages $12 Min. cost $12 Go	$12 Min. cost $12	Go
#2	Singtel Editor's Pick	Singtel Editor's Pick 5G $35 Ultimate Monthly Plan Unlimited data Unlimited National Calls 500 Messages $35 Per 30 Day Renewal Go	$35 Per 30 Day Renewal	Go
#3	GOMO	GOMO 4G Saver SIM Only 20GB data 100 Minutes 100 Messages Deal: $7.18/mth for 3 mths, $10.18/mth thereafter + Free Asia Pack roaming data. Use code 4GSAVERLITE $10.18 Min. cost $10.18 Go	$10.18 Min. cost $10.18	Go
#4	Giga	Giga 20GB SIM Only 20GB data 300 Minutes 300 Messages $10.19 Min. cost $10.19 Go	$10.19 Min. cost $10.19	Go
#5	M1	M1 5G SIM Only 300GB 300GB data 1100 Minutes 1100 Messages Deal: 300GB forever at $17.95 + Free New Moon South Africa Abalone (worth $48.80) for new & port-in sign-ups $17.95 Min. cost $17.95 Go	$17.95 Min. cost $17.95	Go
#6	StarHub	StarHub Medium 5G SIM Only 150GB data 1000 Minutes 500 Messages $22 Min. cost $22 Go	$22 Min. cost $22	Go
#7	Circles.Life	Circles.Life 50GB Data Only 50GB data No Calls Included $8 + $8 Upfront Min. cost $16 Go	$8 + $8 Upfront Min. cost $16	Go

Giga’s next mobile plan costs $20 every 30 days. It comes with 50GB of base data. At the time of writing, this plan also came with 50GB of bonus data for the first three renewal cycles. Use the GIGADATA code at sign-up to claim the bonus data. This Giga plan also comes with 500 minutes of outgoing calls and 500 SMSes. There are also two renewal cycles of data rollover, up to 50GB.

300GB SIM Only

300GB data
300 Minutes
300 Messages

$15.28

Min. cost $15.28

$15.28

Min. cost $15.28

Here’s how this Giga mobile plan compares to other popular mobile plans in our database with at least 50GB of data, which may include StarHub and Gomo mobile plans.

#1	SIMBA Editor's Pick	SIMBA Editor's Pick SuperRoam 12 SIM Only 250GB data Unlimited National Calls 100 Messages $12 Min. cost $12 Go	$12 Min. cost $12	Go
#2	Zero1	Zero1 Starter SIM Only 4G 100GB data 300 Minutes 100 Messages Deal: 5G included for 3 months + 2GB roaming $7.06 + $15.36 Upfront Min. cost $22.42 Go	$7.06 + $15.36 Upfront Min. cost $22.42	Go
#3	MyRepublic	MyRepublic Saver Plan 88GB data 200 Minutes 100 Messages $8.71/mth Min. cost $8.71 Go	$8.71/mth Min. cost $8.71	Go
#4	Singtel Editor's Pick	Singtel Editor's Pick 5G $35 Ultimate Monthly Plan Unlimited data Unlimited National Calls 500 Messages $35 Per 30 Day Renewal Go	$35 Per 30 Day Renewal	Go
#5	M1	M1 5G SIM Only 300GB 300GB data 1100 Minutes 1100 Messages Deal: 300GB forever at $17.95 + Free New Moon South Africa Abalone (worth $48.80) for new & port-in sign-ups $17.95 Min. cost $17.95 Go	$17.95 Min. cost $17.95	Go
#6	redONE	redONE Best 10 200GB data 500 Minutes 200 Messages $10.90 Min. cost $10.90 Go	$10.90 Min. cost $10.90	Go

Spend $25 every 30 days with Giga for a SIM-only plan with 60GB of base data. At the time of writing, users could enter the GIGADATA code during sign-up for 60GB of bonus data for as long as they keep renewing. This Giga plan also comes with 2,000 minutes of outgoing calls and 2,000 outbound SMSes. The data rollover is for two renewal cycles for up to 120GB.

300GB SIM Only

200GB data
800 Minutes
800 Messages

$18.33

Min. cost $18.33

$18.33

Min. cost $18.33

Not all of Giga’s competitors offer mobile plans with this much data, but here’s how Giga looks next to its closest mobile competitors with at least 60GB of data.

#1	SIMBA Editor's Pick	SIMBA Editor's Pick SuperRoam 12 SIM Only 250GB data Unlimited National Calls 100 Messages $12 Min. cost $12 Go	$12 Min. cost $12	Go
#2	Zero1	Zero1 Starter SIM Only 4G 100GB data 300 Minutes 100 Messages Deal: 5G included for 3 months + 2GB roaming $7.06 + $15.36 Upfront Min. cost $22.42 Go	$7.06 + $15.36 Upfront Min. cost $22.42	Go
#3	MyRepublic	MyRepublic Saver Plan 88GB data 200 Minutes 100 Messages $8.71/mth Min. cost $8.71 Go	$8.71/mth Min. cost $8.71	Go
#4	Singtel Editor's Pick	Singtel Editor's Pick 5G $35 Ultimate Monthly Plan Unlimited data Unlimited National Calls 500 Messages $35 Per 30 Day Renewal Go	$35 Per 30 Day Renewal	Go
#5	M1	M1 5G SIM Only 300GB 300GB data 1100 Minutes 1100 Messages Deal: 300GB forever at $17.95 + Free New Moon South Africa Abalone (worth $48.80) for new & port-in sign-ups $17.95 Min. cost $17.95 Go	$17.95 Min. cost $17.95	Go
#6	redONE	redONE Best 10 200GB data 500 Minutes 200 Messages $10.90 Min. cost $10.90 Go	$10.90 Min. cost $10.90	Go

Giga’s last main SIM-only plan costs $45 per 30-day renewal cycle. It has 100GB base data. At the time of review, this plan also had 100GB of bonus data forever using the GIGADATA code at sign-up. Data rollover supports up to 200GB for two renewal cycles. This plan also includes 10,000 minutes of outgoing calls and 10,000 outbound SMSes. For comparison, here’s a look at popular competing SIM-only mobile plans from other mobile providers in Singapore with at least 100GB of data, including Gomo and StarHub.

#1	SIMBA Editor's Pick	SIMBA Editor's Pick SuperRoam 12 SIM Only 250GB data Unlimited National Calls 100 Messages $12 Min. cost $12 Go	$12 Min. cost $12	Go
#2	Zero1	Zero1 Starter SIM Only 4G 100GB data 300 Minutes 100 Messages Deal: 5G included for 3 months + 2GB roaming $7.06 + $15.36 Upfront Min. cost $22.42 Go	$7.06 + $15.36 Upfront Min. cost $22.42	Go
#3	Singtel Editor's Pick	Singtel Editor's Pick 5G $35 Ultimate Monthly Plan Unlimited data Unlimited National Calls 500 Messages $35 Per 30 Day Renewal Go	$35 Per 30 Day Renewal	Go
#4	M1	M1 5G SIM Only 300GB 300GB data 1100 Minutes 1100 Messages Deal: 300GB forever at $17.95 + Free New Moon South Africa Abalone (worth $48.80) for new & port-in sign-ups $17.95 Min. cost $17.95 Go	$17.95 Min. cost $17.95	Go
#5	redONE	redONE Best 10 200GB data 500 Minutes 200 Messages $10.90 Min. cost $10.90 Go	$10.90 Min. cost $10.90	Go
#6	MyRepublic Editor's Pick	MyRepublic Editor's Pick 5G Ultimate 450GB data 1200 Minutes 1200 Messages $17.95/mth Min. cost $17.95 Go	$17.95/mth Min. cost $17.95	Go

Giga data plan

Giga also sells a GigaBuddy Data-Only Plan. It costs $3.90 per month for 1.5GB of local data, and it’s available to existing Giga customers. Giga users with this data-only plan can roll over up to 1.5GB of data across two renewal cycles. This data-only plan is compatible with Giga data add-on packs.

How to sign up for a Giga mobile plan

Follow these steps to sign up for a Giga mobile plan:

Download the Giga app for Android or iOS.
Follow the sign-up steps for a Giga mobile plan.
Insert the Giga SIM card when it arrives.

It’s also a straightforward process to transfer your number from another mobile provider to Giga:

Download the Giga app for Android or iOS.
Select ‘Port-in Number’ during plan sign-up.
Insert the Giga SIM card when it arrives.
The port-in is processed on the next work day.
Tap the ‘Activate’ button in the Giga app to complete the mobile number transfer.

Giga referrals

Every time a Giga customer successfully refers a person to Giga, they earn GigaBucks. This Giga credit is $2 for the first referral, then $4 for every referral afterwards. It caps out at 10 referrals for up to $39 worth of Giga credit. The referred person pays a reduced fee for the first month.

Giga mobile plan add-ons

Giga offers several add-ons for its mobile plans:

1GB Data Pack ($2)
1GB WhatsApp Pack ($1)
1GB Insta ’n’ FB Pack ($1)
1GB GigaRoam APAC Pack ($5 for five days)
1GB GigaRoam Rest of the World Pack ($15 for 15 days)
5G Pack ($10 per month)
$10 GigaBucks Pack

Giga roaming

Giga users can purchase roaming packs up to three months before travelling overseas. These roaming packs activate automatically once a Giga user arrives in one of 48 eligible countries. Incoming and outgoing calls while travelling aren’t supported, plus only inbound SMSes are allowed. Choose from the 1GB GigaRoam APAC Pack for 14 selected Asia-Pacific countries or the 1GB GigaRoam Rest of the World Pack for 34 additional selected countries.

Giga FAQs

Is Giga or Gomo better?
Giga and Gomo both offer SIM-only mobile plans with 30-day renewal cycles. Both mobile providers compete closely on price, data, minutes and SMSes.

Is Giga under StarHub?
Giga primarily uses the StarHub 4G network. Alternatively, Giga users can pay $10 a month for a 5G Pack.

Who is Giga owned by?
Giga is a sub-brand of StarHub, which offers different SIM-only mobile plans.