giga is a mobile provider in Singapore that sells 4G and 5G SIM-only plans that operate on the StarHub network. There are five main SIM-only plans on offer, which all operate on 30-day renewal cycles. All giga mobile plans come with included Asia roaming data (for use in Malaysia, Thailand, Indonesia, India and South Korea), 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
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Giga
![]() |
Giga
![]() 100GB 4G SIM Only
$10.19
+ $2.04 Upfront
Min. cost $12.23
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$10.19
+ $2.04 Upfront
Min. cost $12.23
|
|
#2
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Giga
![]() |
Giga
![]() 300GB 4G SIM Only
$15.28
+ $2.04 Upfront
Min. cost $17.32
|
$15.28
+ $2.04 Upfront
Min. cost $17.32
|
|
#3
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Giga
![]() |
Giga
![]() 300GB 5G SIM Only
$18.33
+ $2.04 Upfront
Min. cost $20.37
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$18.33
+ $2.04 Upfront
Min. cost $20.37
|
|
#4
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Giga
![]() |
Giga
![]() 400GB 5G SIM Only
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
|
#5
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Giga
![]() |
Giga
![]() 1TB 5G SIM Only
$28
+ $2.04 Upfront
Min. cost $30.04
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$28
+ $2.04 Upfront
Min. cost $30.04
|
giga SIM-only plans
#1
|
Giga
![]() |
Giga
![]() 100GB 4G SIM Only
$10.19
+ $2.04 Upfront
Min. cost $12.23
|
$10.19
+ $2.04 Upfront
Min. cost $12.23
|
|
#2
|
Giga
![]() |
Giga
![]() 300GB 4G SIM Only
$15.28
+ $2.04 Upfront
Min. cost $17.32
|
$15.28
+ $2.04 Upfront
Min. cost $17.32
|
|
#3
|
Giga
![]() |
Giga
![]() 300GB 5G SIM Only
$18.33
+ $2.04 Upfront
Min. cost $20.37
|
$18.33
+ $2.04 Upfront
Min. cost $20.37
|
|
#4
|
Giga
![]() |
Giga
![]() 400GB 5G SIM Only
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
|
#5
|
Giga
![]() |
Giga
![]() 1TB 5G SIM Only
$28
+ $2.04 Upfront
Min. cost $30.04
|
$28
+ $2.04 Upfront
Min. cost $30.04
|
The cheapest giga mobile plan costs $10.19 per 30 days. It comes with 100GB of 4G data, 2GB of Asia roaming data, 300 minutes of outgoing calls and 300 outbound SMSes. This SIM-only plan also has 200GB of data rollover for up to two renewal cycles. Here's how it compares to other plans under $15 per month.
#1
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Zero1
![]() |
Zero1
![]() Starter Prime 4G
$7.06
Min. cost $7.06
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$7.06
Min. cost $7.06
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|
#2
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CMLink
![]() |
CMLink
![]() 200GB 4G SIM Only
$7.70
Min. cost $7.70
|
$7.70
Min. cost $7.70
|
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#3
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VIVIFI
![]() |
VIVIFI
![]() Roam Value 4G
$7.70
Min. cost $7.70
|
$7.70
Min. cost $7.70
|
|
#4
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ZYM Mobile
![]() |
ZYM Mobile
![]() 200GB Roam Saver SIM Only
$7.77
+ $3 Upfront
Min. cost $10.77
|
$7.77
+ $3 Upfront
Min. cost $10.77
|
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#5
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Maxx
![]()
Editor's Pick
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Maxx
![]()
Editor's Pick
290GB SIM Only
$7.90
Min. cost $7.90
|
$7.90
Min. cost $7.90
|
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#6
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Eight
![]() |
Eight
![]() Double Eight SIM Only
$8
Min. cost $8
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$8
Min. cost $8
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giga’s next mobile plan costs $15.28 every 30 days. It comes with 300GB of 4G data, 6GB of Asia roaming data, 300 minutes of outgoing calls and 300 SMSes. There are also two renewal cycles of data rollover, up to 600GB.
For an extra few dollars, you can upgrade to a 5G plan at $18.33 per month. It has the same 300GB of data, but this time at 5G speeds, plus a boosted 10GB of Asia Roaming, 1GB of international roaming in up to 34 destinations, 800 minutes of outgoing calls, 800 outgoing SMS, and the same rollover data up to 600GB over two renewal cycles.
See below for comparable plans in the $15 to $20 range.
#1
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CMLink
![]() |
CMLink
![]() 400GB 4G SIM Only
$15
Min. cost $15
|
$15
Min. cost $15
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#2
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VIVIFI
![]() |
VIVIFI
![]() Roam Asia Super 4G
$15
Min. cost $15
|
$15
Min. cost $15
|
|
#3
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Zero1
![]() |
Zero1
![]() Streamo Freedom 4G
$15
Min. cost $15
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$15
Min. cost $15
|
|
#4
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Changi Mobile
![]() |
Changi Mobile
![]() 380GB FlexiGo SIM Only
$15
+ $5 Upfront
Min. cost $20
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$15
+ $5 Upfront
Min. cost $20
|
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#5
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Circles.Life
![]() |
Circles.Life
![]() 4G Special
$15
+ $0.30 Upfront
Min. cost $13.19
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$15
+ $0.30 Upfront
Min. cost $13.19
|
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#6
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GOMO
![]() |
GOMO
![]() 4G Plus SIM Only
$15
+ $2 Upfront
Min. cost $17
|
$15
+ $2 Upfront
Min. cost $17
|
giga's second 5G plan costs $20 per month for 400GB of local data, plus 12GB of Asia roaming and 2GB international roaming, along with 1,000 outgoing minutes and 1,000 outgoing SMS, with free data rollover up to 800GB over two renewal cycles.
If that's still not enough data, giga also offers a 1TB plan for just $28 per month at 5G speeds. You'll also get 16GB of Asia roaming, 2GB international roaming, 1,500 outgoing minutes, 1,500 outgoing SMS, and data rollover up to 2TB over two renewal cycles.
See how these plans stack up with other plans under $30 below.
#1
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SIMBA
![]() |
SIMBA
![]() SuperRoam 20 SIM Only
$20
Min. cost $20
|
$20
Min. cost $20
|
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#2
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Zero1
![]() |
Zero1
![]() Prime 5G
$20
Min. cost $20
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$20
Min. cost $20
|
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#3
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Giga
![]() |
Giga
![]() 400GB 5G SIM Only
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
|
#4
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redONE
![]() |
redONE
![]() Best 20
$20.90
Min. cost $20.90
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$20.90
Min. cost $20.90
|
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#5
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GOMO
![]() |
GOMO
![]() 5G+ Pro SIM Only
$20.99
+ $2 Upfront
Min. cost $22.99
|
$20.99
+ $2 Upfront
Min. cost $22.99
|
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#6
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CMLink
![]() |
CMLink
![]() 200GB 5G SIM Only
$21
Min. cost $21
|
$21
Min. cost $21
|
How to sign up for a giga mobile plan
Follow these steps to sign up for a giga mobile plan:
- Click the "Go" button next to your chosen plan below
- Select your SIM type (physical or eSIM)
- If transferring your number from another provider, select "port-in number" during signup
- For eSIM, download the giga app to complete instant activation
- For physical SIM, insert the giga SIM card when it arrives
#1
|
Giga
![]() |
Giga
![]() 100GB 4G SIM Only
$10.19
+ $2.04 Upfront
Min. cost $12.23
|
$10.19
+ $2.04 Upfront
Min. cost $12.23
|
|
#2
|
Giga
![]() |
Giga
![]() 300GB 4G SIM Only
$15.28
+ $2.04 Upfront
Min. cost $17.32
|
$15.28
+ $2.04 Upfront
Min. cost $17.32
|
|
#3
|
Giga
![]() |
Giga
![]() 300GB 5G SIM Only
$18.33
+ $2.04 Upfront
Min. cost $20.37
|
$18.33
+ $2.04 Upfront
Min. cost $20.37
|
|
#4
|
Giga
![]() |
Giga
![]() 400GB 5G SIM Only
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
$20.37
+ $2.04 Upfront
Min. cost $22.41
|
|
#5
|
Giga
![]() |
Giga
![]() 1TB 5G SIM Only
$28
+ $2.04 Upfront
Min. cost $30.04
|
$28
+ $2.04 Upfront
Min. cost $30.04
|
giga referrals
Every time a giga customer successfully refers a person to giga, they earn gigaBucks. This giga credit is $2 for the first four referrals, then $10 (plus a one-off $5 bonus for your fifth referral) for every referral afterwards. The referred person pays a reduced fee for the first month.
giga mobile plan add-ons
giga also sells a gigaBuddy Data-Only Plan. It costs $3.97 per month for 2GB of local data, and it’s available to existing giga customers. giga users with this data-only plan can roll over up to 2GB of data across two renewal cycles. This data-only plan is compatible with giga data add-on packs.
giga roaming
giga users can choose between two roaming packs. Incoming and outgoing calls while travelling aren’t supported, and only inbound SMSes are allowed.
For APAC destinations (including Australia, China, Hong Kong, Indonesia, Japan, South Korea, Macau, Malaysia, Myanmar, New Zealand, Philippines, Taiwan, Thailand, and Vietnam), 1GB is just $5 and is valid for five days.
For international destinations including Austria, Bangladesh, Belgium, Brunei, Cambodia, Canada, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, India, Ireland, Israel, Italy, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Qatar, Russia, Spain, Sweden, Switzerland, Turkey, United Kingdom, United Arab Emirates, and United States of America, customers can pay $15 for 1GB which is valid for 15 days.
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 uses the StarHub network. Two of its plans are 4G-only, while three are 5G-enabled.
Who is giga owned by?
giga is a sub-brand of StarHub, which offers different SIM-only mobile plans.
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