If you are a heavy mobile data user, you need SIM plan recommendations with generous monthly caps so you never run out of data. We’ve rounded up the best 5G SIM plans from various providers in Singapore, focusing on data capacity, price-to-data value and other data management features useful for heavy users.
Here is a quick table comparison of the best SIM-only plans for heavy data users in Singapore, with various options for different data caps and prices depending on your needs and budget.
The standout contender in this list is the Maxx 5G plan, which offers a robust 500GB of data shared across Singapore, Malaysia, and Indonesia for just S$12/month. Other options include the eight 5G plan for 688GB of data for a slightly higher price of $18/mth, and the Singtel Priority Ultra Plan for users looking for unlimited data with no caps at $80/mth.
| Provider and Plan |
Data Capacity |
Other Features |
Price |
| Maxx 5G |
500GB (Singapore, Malaysia, Indonesia)
20GB APAC Roaming
7GB International Roaming
|
Up to 600 IDD Mins
500 Mins Local Outgoing Calls
Unlimited Local Incoming Calls
50 Local SMS
Free Caller Number Display
Free SIM Card and Delivery
|
$12/mth |
| Circles.life 5G |
800GB
12GB Roaming in Selected Countries
|
Unlimited Incoming and Outgoing Local Calls
Free Caller ID
Access to movie tickets at $10
Free AI bundle powered by the latest paid models like OpenAI GPT-5 and more.
|
$18/mth |
| giga! 5G |
500GB (Singapore and Malaysia)
12GB Asia Roaming
10GB International Roaming
|
1000 Mins Local Outgoing Calls
1,000 Local SMS
Free Rollover Data
Free Caller ID
|
$20.37/mth |
| SIMBA 5G |
500GB (Singapore, Malaysia, Indonesia, Thailand, HK)
18GB APAC Roaming
8GB International Roaming
|
Up to 600 IDD Mins and Local Outgoing Call Mins
100 Local SMS
|
$12/mth |
| eight 5G |
688GB (Singapore, Malaysia, Indonesia, Thailand)
36GB APAC Roaming
18GB International Roaming
|
Up to 488 IDD Mins
888 Mins Local Talktime
128 Local SMS
|
$18/mth |
| MyRepublic 5G |
800GB Local Data
15GB Roaming (Malaysia/Indonesia/Thailand)
4GB International Roaming
|
1,400 Mins Local Talktime
1,400 Local SMS
|
$19.95/mth |
| M1 Bespoke SIM-Only 5G |
1TB Local Data
|
1,000 Mins Talktime
1,000 SMS
Free 12 Months Unlimited Weekend Data
|
$17.95/mth |
| Singtel Priority Ultra 5G |
Unlimited Local Data
50GB Malaysia Roaming
6GB Asia Roaming
|
1,500 Mins Talktime
1,500 SMS
Caller ID
12 months of Disney+ Premium
12 months of HBO Max Standard
|
$80/mth |
A heavy data user is generally defined as an individual who consumes 50GB to 200GB of mobile data or more per month. Individuals might use a lot of data because they frequently stream high-definition or 4K video, download large files, or are a frequent user of data-intensive applications like online gaming or video conferencing.
While official figures on the average mobile data usage for each Singaporean is unavailable, we can extrapolate. In Q4 of 2024, the average total mobile data usage in Singapore was 96 petabytes per month. Assuming that this is shared amongst Singapore’s 6 million population, that means each user uses 16 gigabytes of data each month.
SIM plan recommendations for heavy data users are generally those with higher data caps to provide enough buffer room for unexpected spikes in usage.
Heavy data users in Singapore are likely to come from the following groups:
- Mobile Gamers: Playing data-intensive mobile games like Genshin Impact or Call of Duty Mobile, especially when downloading large updates or streaming competitive play.
- 4K/High-Res Streamers: Watching Ultra HD video content (4K Netflix, YouTube) on the go or using mobile data to power a home streaming setup via hotspot.
- Remote Workers and Students: Constantly attending long video calls (Zoom, Teams), downloading large files, and using mobile tethering as a primary or backup internet source for a laptop.
- Cloud Power Users: Synchronising massive photo libraries, video files, or large documents to cloud services like Google Drive or Dropbox over the mobile network.
- Social Media Creators: Uploading high-resolution videos and frequent live-streaming sessions on platforms like TikTok and Instagram.
Understanding how much data each activity consumes highlights why the best SIM-only plan for heavy data users is generally 500GB or more. While mobile gaming uses a moderate amount of data, high-resolution streaming and using your phone as a home internet replacement via tethering will quickly burn through several hundred gigabytes monthly.
| Activity |
Typical Data Consumption Rate |
Estimated Monthly Usage (at 4 hours/day) |
| 4K Video Streaming (Netflix/YouTube) |
7GB - 11GB per hour |
840GB - 1.3 TB |
| HD Video Streaming (1080p) |
2GB - 3GB per hour |
240GB - 360 GB |
| Mobile Gaming (E.g., PUBG, CoD) |
50MB - 150MB per hour |
6GB - 18 GB |
| Cloud Gaming / PC Tethering |
3GB - 10GB per hour |
360GB - 1.2 TB |
| High-Quality Video Call (Zoom/Teams) |
1GB per hour |
120GB |
This range represents the "sweet spot" where you get generous data volumes for a comparatively low price. The best SIM-only plan in this category is the Maxx 5G plan, which stands out as the clear value winner, offering a generous 500GB of data shared across Singapore, Malaysia, and Indonesia for just S$12/month. It even includes higher than average data caps for APAC and International roaming compared to the competition.
| Provider and Plan |
Data Capacity |
Other Features |
Price |
| Maxx 5G |
500GB (Singapore, Malaysia, Indonesia)
20GB APAC Roaming
7GB International Roaming
|
Up to 600 IDD Mins
500 Mins Local Outgoing Calls
Unlimited Local Incoming Calls
50 Local SMS
Free Caller Number Display
Free SIM Card and Delivery
|
$12/mth |
| Circles.life 5G |
800GB
12GB Roaming in Selected Countries
|
Unlimited Incoming and Outgoing Local Calls
Free Caller ID
Access to movie tickets at $10
Free AI bundle powered by the latest paid models like OpenAI GPT-5 and more.
|
$18/mth |
| giga! 5G |
500GB (Singapore and Malaysia)
12GB Asia Roaming
10GB International Roaming
|
1000 Mins Local Outgoing Calls
1,000 Local SMS
Free Rollover Data
Free Caller ID
|
$20.37/mth |
| SIMBA 5G |
500GB (Singapore, Malaysia, Indonesia, Thailand, HK)
18GB APAC Roaming
8GB International Roaming
|
Up to 600 IDD Mins and Local Outgoing Call Mins
100 Local SMS
|
$12/mth |
| eight 5G |
688GB (Singapore, Malaysia, Indonesia, Thailand)
36GB APAC Roaming
18GB International Roaming
|
Up to 488 IDD Mins
888 Mins Local Talktime
128 Local SMS
|
$18/mth |
| MyRepublic 5G |
800GB Local Data
15GB Roaming (Malaysia/Indonesia/Thailand)
4GB International Roaming
|
1,400 Mins Local Talktime
1,400 Local SMS
|
$19.95/mth |
For heavy data consumers who require the absolute highest capacity, M1 offers the best 5G SIM plan that is the most affordable: 1TB of local data for $17.95/mth. Meanwhile, Singtel’s Priority Ultra 5G is the best SIM-only plan If you require unlimited local data, although that comes in at a hefty $80/mth.
| Provider and Plan |
Data Capacity |
Other Features |
Price |
| Singtel Priority Ultra 5G |
Unlimited Local Data
50GB Malaysia Roaming
6GB Asia Roaming
|
1,500 Mins Talktime
1,500 SMS
Caller ID
12 months of Disney+ Premium
12 months of HBO Max Standard
|
$80/mth |
| M1 Bespoke SIM-Only 5G |
1TB Local Data
|
1,000 Mins Talktime
1,000 SMS
Free 12 Months Unlimited Weekend Data
|
$17.95/mth |
| giga! 5G |
1TB (Singapore and Malaysia)
12GB Asia Roaming
10GB International Roaming
|
1,500 Call Mins
1,500 SMS
Free Rollover Data
Free Caller ID
|
$28/mth |
| Circles.life 5G |
1TB
15GB Roaming in Selected Countries
|
Unlimited Incoming and Outgoing Local Calls
Free Caller ID
Access to movie tickets at $10
Free AI bundle powered by the latest paid models like OpenAI GPT-5 and more.
|
$22/mth |
Heavy data users need larger data allowances to create a buffer for high-bandwidth activities, but they should also consider factors such as speed, network stability, data rollover, and international connectivity that affect the internet experience.
- 5G Network: Make sure your plan runs on the 5G network, which delivers up to 20Gbps data rates, making it significantly faster than 4G. This will ensure high-bandwidth activities like 4K streaming or low latency mobile gaming run smoothly.
- Network Stability and Speed: MVNOs rent infrastructure from the main MNOs in Singapore (Singtel, StarHub and M1). Check which underlying network your chosen plan runs on and make sure you have strong coverage in the areas you frequent.
- Data Rollovers or Free Weekends: Data rollovers allow you to save unused data to count towards your usage for the next billing cycle. This can be a useful feature if you need an additional buffer. Other features like free data on weekends can also help you save on data usage.
- Roaming Perks: If you are a cross-border commuter or travel frequently to countries like Malaysia or Indonesia, look for SIM-only plans like those from Maxx which bundle roaming for certain countries as part of your local data capacity. This is not only convenient, but can be cheaper in the long run as you don’t have to buy a separate travel mobile data plan each time.