ZenSim
35GB
35GBa month, ongoing
$360first year
$30 a month
Same price in year two
These prices were checked on 15 October 2026, more than 30 days ago. Check the provider's page before you buy.
Vodafone networkUses the Vodafone network
ZenSim plans, added up
ZenSim sells monthly prepaid SIM plans on the Vodafone 5G/4G network, which its network page names.
3 plans, from $360 for the first year (35GB) up to 100GB a month (100GB).
ZenSim against its network
- Cheapest way in: ZenSim 35GB at $360 for the first year. That ranks 8 of 8 providers on the Vodafone network, where Pivotel starts at $206.
- Not the cheapest on the Vodafone network at any of the 5 data levels we compare (10GB, 30GB, 60GB, 100GB, 200GB).
- Best value per GB: ZenSim 70GB, about $0.57 a GB over the first year.
- 3 plans: prepaid, billed monthly.
Worth knowing
- 3 of ZenSim's 3 plans carry a note that a detail wasn't stated or couldn't be read (for example what happens when data runs out), so check the provider's page before you buy.
Every ZenSim plan
Switching to ZenSim
- Check your phone is unlocked and works on the Vodafone network, because ZenSim uses it. Look at the coverage map for the places you live and work.
- Keep your number: ask ZenSim to move it when you sign up, and don't cancel your old plan first. Your old provider texts a code to confirm, and the move is usually done the same day.
- Pay up front: it's prepaid, so you recharge before you start. The smallest first payment is $30 (ZenSim 35GB), then $30 a month.
- None of the 3 ZenSim plans we track has a lock-in contract, so you can leave without a fee.
- eSIM (no plastic SIM) is listed on 3 of 3 plans, so you can switch on the spot with a compatible phone.
- Our data says that if your data runs out it stops until the next recharge or month, with no extra charge.
How the prices line up
ZenSim at a glance
- Network
- Uses the Vodafone network
- Type
- Prepaid
- Cheapest first year
- 35GB, $360
- Best per GB
- 70GB, $0.57 a GB in year one
- Deals right now
- None
- Contracts
- No lock-in on any plan we track
Charged on the same day each month rather than every 28 days.
ZenSim's plans page doesn't say what happens when the data runs out; extra data is sold as packs, so we treat data as stopping.
ZenSim's plans page says to see its Critical Information Summaries, but we could not find them; check the figures with ZenSim before you buy.
Questions people ask
Which network does ZenSim use?
Uses the Vodafone network. Coverage is the same as Vodafone's because it rents the same towers. Check the coverage map.
How was this checked?
From ZenSim's own plans page and Critical Information Summaries. Each plan page shows the date. We are not paid by providers to rank them.