M1 Maxx mobile plans review

By Nathan Lawrence

Last updated 16 January 2026

Contents

In this guide:

M1 Maxx SIM-only plans
How to sign up for an M1 Maxx mobile plan
M1 Maxx mobile plan add-ons
M1 Maxx mobile roaming
M1 Maxx customer service
M1 Maxx FAQs

M1 Maxx's point of difference from its parent, M1, is the price. Maxx is almost exclusively focused on providing competitively priced SIM-only mobile plans in Singapore. While there aren't any prepaid plans on offer, they’re all priced under $20 for 30-day, zero-contract plans.

They keep their offerings simple, with three plans all offering solid international and local data allowances.

Pros

Competitive pricing
All plans include unlimited local outgoing calls
IDD and roaming inclusions

Cons

Limited plan options

M1 Maxx mobile plans

#1	Maxx	Maxx 290GB SIM Only 290GB data on M1 network 500 Minutes 99 Messages Deal: Online Exclusive: $7.90 promotional price for the first 12 cycles for new sign-ups and number port-ins $7.90 Min. cost $7.90 Go	$7.90 Min. cost $7.90	Go
#2	Maxx	Maxx 400GB SIM Only 400GB data on M1 5G network 500 Minutes 50 Messages $10 Min. cost $10 Go	$10 Min. cost $10	Go
#3	Maxx	Maxx 500GB SIM Only 500GB data on M1 5G network 500 Minutes 50 Messages $12 Min. cost $12 Go	$12 Min. cost $12	Go

M1 Maxx only has three SIM-only plans, all of which have no contracts and operate on 30-day billing cycles. They all operate on the M1 network and have unlimited incoming calls as well as free caller number display. 5G plans get $0 SIM card with free delivery and up to 600 IDD minutes. Fortunately, all base plan data is shareable in Singapore and Malaysia across all plans. As an extra perk, all plans support eSIM, just like their parent company, M1.

The cheapest M1 Maxx plan is the 290GB SIM Only one, which costs $9.90 every 30 days, but you'll get it for $7.90 per month (for the first 12 months) if you're a new sign-up or port-in. This M1 Maxx plan comes with 290GB of data, 500 local call minutes and 99 local SMS. You also get 10GB of APAC roaming to five destinations (Bangladesh, Indonesia, Malaysia, Thailand and Taiwan) and 2GB of international roaming to 24 international locations.

The next Maxx plan is the 400GB SIM Only, which costs $10 for 30 days. Buy it and you’ll get 400GB of data, 500 local call minutes and 50 local SMS. It also comes with 13GB of APAC roaming data to those same five destinations from the cheaper Maxx plan. It also comes with up to 300 IDD minutes and 3GB of international roaming.

The priciest M1 Maxx plan is the 500GB SIM Only, which costs $12 every 30 days. It includes 500GB of data, 500 local outgoing call minutes and 50 local SMS. You’ll also get 20GB of APAC roaming data to those same five destinations in the cheaper plans, and 7GB of international roaming. You'll also get up to 600 IDD minutes to selected countries.

Also consider:

#1	Zero1	Zero1 Starter Prime 4G 200GB data on Singtel's 4G network 300 Minutes 100 Messages Deal: Roam Malaysia 100GB for 365 days $7.06 Min. cost $7.06 Go	$7.06 Min. cost $7.06	Go
#2	CMLink	CMLink 200GB 4G SIM Only 200GB data on Singtel's 4G network 300 Minutes 100 Messages Deal: Free 100GB Malaysia roaming for 365 days for new sign-ups only $7.70 Min. cost $7.70 Go	$7.70 Min. cost $7.70	Go
#3	VIVIFI	VIVIFI Roam Value 4G 200GB data on Singtel's 4G network 300 Minutes 100 Messages $7.70 Min. cost $7.70 Link not supplied	$7.70 Min. cost $7.70	Link not supplied
#4	ZYM Mobile	ZYM Mobile Roam Saver 4G 200GB data on Singtel network 300 Minutes 100 Messages Deal: Free eVoucher worth $190 + Use promo code 'WHISTLEOUT' to get 3x chances to win Galaxy Buds 3, worth $258 $7.77 + $3 Upfront Min. cost $10.77 Go	$7.77 + $3 Upfront Min. cost $10.77	Go
#5	MyRepublic	MyRepublic 4G Vibe 300GB data on M1 4G network 150 Minutes 50 Messages $7.90/mth Min. cost $7.90 Go	$7.90/mth Min. cost $7.90	Go
#6	Maxx	Maxx 290GB SIM Only 290GB data on M1 network 500 Minutes 99 Messages Deal: Online Exclusive: $7.90 promotional price for the first 12 cycles for new sign-ups and number port-ins $7.90 Min. cost $7.90 Go	$7.90 Min. cost $7.90	Go

Follow these steps to sign up for a Maxx plan:

Pick the M1 Maxx plan that’s right for you, then click on the ‘Go to Site’ button.
Select the ‘Buy now’ button beneath the corresponding Maxx plan to confirm selection.
Input your personal details, including email and home address, then click ‘Confirm’.
Follow the prompts to complete M1 Maxx sign-up.

M1 Maxx mobile plan add-ons

A lot of M1 Maxx's add-ons are bundles that include extra local data, roaming data for selected locations, more call minutes and additional SMS. Here’s a breakdown of all the M1 Maxx mobile plan add-ons:

400GB add-on

$10 for 30-day expiry, $30 for 90-day expiry, $58 for 180-day expiry and $115 for 360-day expiry. You get 400GB local data (Singapore and Malaysia), 13GB APAC roaming data (Bangladesh, Indonesia, Malaysia, Thailand, Taiwan), 300 IDD minutes for use in select destinations, 3GB international roaming, unlimited incoming calls, 500 local outgoing call minutes and 50 SMS. For add-ons beyond 30-day expiry, all add-on perks renew every 30 days.

500GB add-on

$12 for 30-day expiry, $36 for 90-day expiry, $70 for 180-day expiry and $138 for 360-day expiry. Includes 500GB local data (Singapore and Malaysia), 7GB international roaming data, 20GB APAC roaming data (Bangladesh, Indonesia, Malaysia, Thailand, Taiwan), 600 IDD minutes for use in select destinations, unlimited incoming calls, 500 local outgoing call minutes and 50 SMS. For add-ons beyond 30-day expiry, all add-on perks renew every 30 days.

750GB add-on

$15 for 30-day expiry, $42 for 90-day expiry, $84 for 180-day expiry and $168 for 360-day expiry. You get 750GB local data (Singapore, Malaysia and Indonesia), 20GB APAC roaming data (Bangladesh, Indonesia, Malaysia, Thailand, Taiwan), 720 IDD minutes for use in select destinations, 8GB international roaming, unlimited incoming calls, 500 local outgoing call minutes and 50 SMS. For add-ons beyond 30-day expiry, all add-on perks renew every 30 days.

IDD add-ons

There are also a couple of International Direct Dial (IDD) add-ons for M1 Maxx customers, both with 30-day expiries. The first costs $6 for 150 minutes of calls to Bangladesh, China, India and Malaysia, with 100 minutes to Indonesia, 25 minutes to Myanmar and 25 minutes to the Philippines. The other IDD pack costs $10 for 300 call minutes to Bangladesh, China, India and Malaysia, plus 200 minutes to Indonesia, 50 minutes to Myanmar and 50 minutes to the Philippines.

M1 Maxx mobile roaming

All M1 Maxx SIM-only plans include different data allocations for roaming in Bangladesh, Indonesia, Malaysia, Taiwan and Thailand. The cheapest M1 Maxx plan also has 2GB of international roaming to 24 destinations: Australia, Bangladesh, Brunei, Cambodia, Canada, China, Croatia, Hong Kong, India, Indonesia, Japan, Laos, Macau, Malaysia, New Zealand, Philippines, Russia, South Korea, Sri Lanka, Switzerland, Taiwan, Thailand, United States of America, and Vietnam.

There are also three roaming add-ons for M1 Maxx users, all valid for 21 days:

$6 Roaming Add-on: 1GB of data for use in 14 destinations: Australia, Bangladesh, Brunei, Cambodia, China, Hong Kong, Indonesia, Macau, Malaysia, South Korea, Sri Lanka, Taiwan, Thailand and Vietnam.
$9 Roaming Add-on: 1GB of data for use in the above 14 destinations, plus Japan, New Zealand and the Philippines.
$16 Roaming Add-on: 1GB of data for use in the previously mentioned 17 destinations, plus 24 other destinations: Canada, Croatia, Czech Republic, Denmark, Germany, Greece, Hungary, Iceland, India, Ireland, Italy, Laos, Netherlands, Norway, Portugal, Qatar, Russia, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, United Kingdom and United States of America.

M1 Maxx customer service

M1 Maxx has several support options should you need them. You can call the Maxx customer service hotline and speak to an agent over the phone, or visit any of M1's brick-and-mortar stores and speak to someone face-to-face.

While most providers benefit from a score and reviews on Seedly, M1 Maxx isn't one of them. Even though M1 was ranked number one for 5G availability in the June 2025 Open Signal Mobile Network Experience Report, its coverage is still a point of complaint amongst its users. Some Reddit users claim that coverage is decent enough, while others point out frequent dead spots and poor coverage.