Yesim eSIM Review 2026: A Global Travel eSIM for 200+ Countries
First, a name check: Yesim (yesim.app) is an international travel eSIM brand — it is not Malaysia's Yes mobile network. Same-looking name, completely different company. This review is about the global eSIM app.
By Malaysia4U Editorial Team · Updated 10 June 2026 · Editorial assessment for travellers visiting Malaysia and Malaysians travelling abroad
Quick Verdict
- →A genuine global travel eSIM. 200+ countries via local, regional and global plans, with pay-as-you-go data packs or unlimited day passes, from around $0.54/day.
- →Two clear audiences: tourists visiting Malaysia who want data on arrival without an airport SIM queue, and Malaysians heading abroad who want to dodge expensive roaming.
- →Convenience over rock-bottom price. A local Malaysian tourist SIM is usually cheaper per GB; Yesim wins on install-before-you-fly convenience and keeping your own number.
- →Not the same as "Yes" Malaysia. Yesim is a data-reseller eSIM brand; Yes is a Malaysian network operator. Don't confuse the two.
Get a Yesim Travel eSIM
Data in 200+ countries, pay-as-you-go or unlimited, from $0.54/day. Install before you fly — get online the moment you land.
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Yesim vs "Yes" Malaysia — Clearing Up the Name
Because this is a Malaysian site, we have to start here. Yesim and Yes are two completely different things:
| Yesim (this review) | Yes (Malaysia) | |
|---|---|---|
| What it is | Global travel-eSIM reseller (yesim.app) | Malaysian mobile network operator (formerly YTL Communications) |
| What you get | Prepaid data eSIMs for 200+ countries | A local Malaysian SIM/number with 4G/5G |
| Best for | Travel data, multi-country trips | Living/working in Malaysia long-term |
| Number | Usually data-only (optional virtual number) | A real Malaysian phone number |
In short: if you want a phone line to live in Malaysia, look at Yes, CelcomDigi, Maxis/Hotlink, U Mobile or unifi. If you want cheap travel data across borders, that is what Yesim is for. The rest of this review is purely about the travel eSIM.
How an eSIM Actually Works
An eSIM is a SIM profile that lives in software on your phone instead of a plastic card. With Yesim, the flow is: open the app (or website), choose a country, regional or global plan, pay, and the eSIM installs over the internet — usually via a QR code or a one-tap in-app install. No tray, no pin, no swapping cards.
The big practical wins: you can buy and install before you fly, then flip the eSIM on when you land so you have data immediately at the airport — no arrivals-hall SIM queue or passport registration. And because it is a second line, your physical Malaysian SIM stays in the phone, so you keep your own number for calls and one-time passwords while using Yesim purely for data.
The catch: your phone must be eSIM-capable and carrier-unlocked. Most flagships from the last several years qualify; some budget and older handsets do not. We cover compatibility below.
Coverage: 200+ Countries
Yesim advertises connectivity in 200+ countries, riding on a large base of partner operators (Yesim cites 800+ networks). You buy at three levels:
- Country plans — cheapest per GB if you only visit one place (e.g. a Malaysia-only plan).
- Regional plans — one eSIM covering a region such as Europe, Asia or North America, ideal for multi-country itineraries.
- Global packages — one plan spanning many countries worldwide; convenient but pricier per GB.
Real-world coverage rides on local partner networks, so expect strong 4G/5G in cities and main tourist areas and weaker signal in remote regions — the same reality as a local SIM in those spots. For Malaysia specifically, that means solid coverage in KL, Penang, Johor and along main travel corridors.
Yesim Plans & Pricing for Malaysia
Here is an indicative snapshot of Yesim's Malaysia line-up in June 2026. Prices move with promotions and currency, so always confirm the live figure in the app — treat this as a guide, not a quote.
| Plan type | Example | Indicative price | Best for |
|---|---|---|---|
| Prepaid (PAYG) — starter | 500 MB / 1 day (first-time deal) | ~$0.54 | A quick test or a single day |
| Prepaid (PAYG) — data pack | Multi-GB / 30 days | Per-GB, cheaper the more you buy | Light–moderate users |
| Unlimited — short pass | Unlimited / 1 day | ~$4.80/day | Heavy use, brief trip |
| Unlimited — long pass | Unlimited / 30 days | under ~$2/day | Heavy use, longer stay |
Indicative figures from Yesim's Malaysia page, June 2026. Unlimited day passes get cheaper per day on longer durations; prepaid packs get cheaper per GB on bigger sizes. Confirm live prices in-app.
Pay-As-You-Go vs Unlimited
Pay-as-you-go (prepaid packs) give you a fixed allowance — 1 GB, 5 GB, 10 GB and so on — valid for a set number of days. You top up when it runs low. This is the cheaper route for light to moderate users: maps, messaging, a bit of browsing and the occasional photo upload.
Unlimited day passes remove the data cap for a daily price and suit heavy users — people who stream video, tether a laptop for work, or video-call all day. The honest caveat: unlimited plans carry a fair-usage policy, so speeds can be throttled after a high daily threshold. "Unlimited" means no hard cut-off, not guaranteed full speed forever.
Rule of thumb: if you mostly use maps and chat, a small prepaid pack is cheaper. If you tether or stream daily, price out an unlimited pass for your trip length — on longer durations the per-day cost drops sharply.
The App, Top-Ups & Virtual Numbers
The app (iOS and Android) is where most people buy, install and manage plans. You can also buy on the website. Installation is QR-code or one-tap, and the app shows your remaining data and validity.
Top-ups are painless: when a pack runs low or a duration is ending, buy another pack or extend, and it loads onto the same eSIM profile — no reinstall, no swapping. Some plans draw down from a pre-loaded balance.
Virtual phone numbers are an optional Yesim feature in some destinations — a number not tied to a physical SIM that can receive SMS, handy for OTPs and alerts. Availability and price vary by country, so check the app for your destination. Note that the core travel eSIM is data-only: for calls and texts you use apps (WhatsApp, Telegram, FaceTime) or keep your home SIM in for SMS.
Compatible Devices
You need an eSIM-capable, carrier-unlocked phone. As a rough guide, that includes:
- iPhone XR / XS and newer (some China-market iPhones are eSIM-incapable)
- Samsung Galaxy S20 and newer, plus many recent Z/Note/A models
- Google Pixel 3 and newer
- Various recent Huawei, Oppo, Motorola and Honor models
Quick check: dial *#06# — if your phone shows an EID number, it supports eSIM. Then make sure the phone is unlocked from your home carrier, and consult Yesim's compatible-devices list for your exact model before buying.
Yesim vs Airalo, Holafly, Nomad & Local SIMs
The travel-eSIM market is crowded. Here is how Yesim stacks up against the names you'll see most, plus the traditional option — a local Malaysian tourist SIM.
| Option | Coverage | Unlimited? | Price feel | Convenience |
|---|---|---|---|---|
| Yesim | 200+ countries (country/regional/global) | Yes (day passes, FUP) | Low–mid; from $0.54/day | High (app, top-ups, virtual numbers) |
| Airalo | 200+ countries; biggest catalogue | Mostly data packs; some unlimited | Low–mid per-GB packs | High; very polished app |
| Holafly | 160+ countries | Unlimited is its signature | Higher; flat daily unlimited | High, but often no hotspot/tether |
| Nomad | 170+ countries | Mostly data packs | Often very cheap per-GB | High; clean app |
| Local MY SIM (CelcomDigi / Hotlink / U Mobile) | Malaysia only | Some big-data tourist packs | Cheapest per GB in-country | Lower (airport queue, passport reg) |
vs Airalo: Airalo is the market leader by catalogue size and app polish, and is the safe default. Yesim's differentiators are its unlimited day passes and virtual phone numbers, which Airalo's core offering leans away from. On simple per-GB data packs the two are close; compare the exact plan for your country.
vs Holafly: Holafly built its name on flat-rate unlimited data, but historically restricts hotspot/tethering and charges a premium. If you want unlimited and tethering for a laptop, Yesim's unlimited passes are worth pricing against Holafly — often cheaper, and tethering-friendly.
vs Nomad: Nomad frequently has some of the lowest per-GB data-pack prices and a tidy app, but fewer unlimited options. For a pure cheap-data-pack buyer, Nomad is a strong rival; for unlimited or virtual numbers, Yesim pulls ahead.
vs a local Malaysian SIM: for a longer stay in Malaysia on a budget, a CelcomDigi, Hotlink/Maxis or U Mobile tourist SIM is almost always the cheapest per gigabyte and gives you a local number for calls. The trade-off is the arrivals queue, passport registration, and a plastic SIM to keep track of. Yesim trades a little money for a lot of convenience — install before you fly, online on landing, your own number kept.
Who Yesim Is For (Audience Cohorts)
Yesim fits some travellers far better than others. Here is how it lands across the main cohorts:
Frequent international travellers
The best fit. One app handles country, regional and global plans, so there is no fresh SIM hunt every trip. Reuse the same eSIM profile and just buy a new plan on it for each destination.
Digital nomads
Unlimited day passes that allow tethering make Yesim a credible work-from-anywhere data line for laptops. Watch the fair-usage throttle on very heavy days, and keep a backup option for long stays where a local SIM is cheaper.
Short-trip tourists
For a few days in Malaysia (or anywhere), a small prepaid pack gets you online for a handful of dollars with zero airport faff. The convenience premium over a local SIM is small in absolute terms on a short trip.
Dual-SIM business users
Keep your physical work SIM for calls and OTPs, run Yesim as the data eSIM. You stay reachable on your normal number while paying travel-data rates instead of corporate roaming.
Malaysians travelling abroad
A core use case. Skip pricey CelcomDigi/Maxis/U Mobile/Yes roaming: buy a Yesim country, regional or global plan before departure, keep your Malaysian number for OTPs, and use cheap Yesim data overseas. Priced in USD, so account for card FX.
eSIM-phone owners
If you already own an eSIM-capable, unlocked phone (most recent iPhones, Galaxy S/Pixel models), Yesim is effectively friction-free — nothing to receive in the post, nothing to insert. If your phone lacks eSIM, Yesim simply won't work; a physical SIM is your only route.
Who it isn't for
People settling in Malaysia long-term (get a local Yes/CelcomDigi/Maxis/U Mobile line), anyone on a non-eSIM or carrier-locked phone, and extreme budget travellers on long stays where a local SIM's per-GB price wins outright.
Setup Tips
- 1Confirm eSIM support first. Dial *#06# and look for an EID; check the phone is carrier-unlocked.
- 2Install on Wi-Fi before you fly. The eSIM downloads over the internet, so do it at home — then you just enable it on arrival.
- 3Set Yesim as the data line and turn off your home SIM's data + roaming to avoid surprise charges, while keeping it active for calls/SMS.
- 4Enable data roaming on the Yesim line. Counter-intuitive but required — travel eSIMs ride partner networks and need roaming switched on for that line.
- 5Right-size the plan. Maps + chat = small prepaid pack; streaming/tethering = unlimited pass. Top up in-app if you run low.
Tip: label the eSIM (e.g. "Yesim Travel") in your phone settings so you don't confuse it with your home line, and delete the profile once the trip ends to keep your eSIM slots tidy.
Pros and Cons
✓ Pros
- 200+ countries with country, regional and global plans
- Both pay-as-you-go data packs and unlimited day passes
- Cheap entry — from around $0.54/day
- Install before you fly; online the moment you land
- Keep your own Malaysian number (data-only second line)
- Top-ups load onto the same eSIM, no reinstall
- Optional virtual phone numbers in some countries
- Unlimited passes generally allow tethering (unlike some rivals)
✗ Cons
- A local Malaysian tourist SIM is usually cheaper per GB
- Unlimited plans carry a fair-usage throttle
- Data-only by default — no real local number unless you add a virtual one
- Needs an eSIM-capable, unlocked phone
- Priced in USD, so card FX/markup applies for Malaysians
- Coverage in remote areas only as good as the partner network
- Crowded market — Airalo/Nomad can undercut on specific data packs
FAQ
Is Yesim the same as Malaysia’s Yes network?
No. Yesim (yesim.app) is an international travel-eSIM brand that resells mobile data across 200+ countries through partner networks. Yes (formerly YTL Communications) is a separate Malaysian mobile operator with its own 4G/5G spectrum. The names look similar but they are unrelated companies. If you want a local Malaysian postpaid/prepaid line, that is Yes (or CelcomDigi, Maxis/Hotlink, U Mobile, unifi). If you want a global travel data eSIM for trips, that is Yesim.
How does a Yesim eSIM work?
An eSIM is a SIM profile downloaded to your phone instead of a physical plastic card. With Yesim you install the app (or buy on the website), pick a country, regional or global plan, pay, and the eSIM installs over the internet — often via a QR code or one-tap install. You can buy and install before you fly, then switch it on when you land so you have data the moment you arrive. Your physical home SIM stays in the phone for calls and SMS, so you keep your normal Malaysian number while using Yesim data abroad. Your device must be eSIM-compatible and carrier-unlocked.
How much does a Yesim plan for Malaysia cost?
On Yesim’s Malaysia page in June 2026, prepaid data starts around a first-time 500 MB / 1-day deal at about $0.54, with larger packs such as a 30-day data plan priced per GB (cheaper per GB the more you buy). Unlimited-data day passes for Malaysia are priced per day and get cheaper on longer durations (roughly $4.80/day for 1 day down to under $2/day on a 30-day unlimited pass). Prices change often and depend on promotions, so always confirm the live price in the app before buying. As a benchmark, a short-trip tourist can comfortably get online for a few US dollars.
What is the difference between pay-as-you-go and unlimited on Yesim?
Pay-as-you-go (prepaid data packs) gives you a fixed amount of data — say 1 GB, 5 GB or 10 GB — valid for a set number of days; you top up when it runs low. Unlimited day passes remove the data cap for a daily price, which suits heavy users who stream, tether a laptop or video-call a lot. Unlimited plans are subject to a fair-usage policy, meaning speeds can be throttled after a high daily threshold, so “unlimited” means no hard cut-off rather than guaranteed top speed all day. Light users are usually cheaper on a small prepaid pack; heavy daily users often win with an unlimited pass.
Does Yesim give me a phone number?
Most Yesim travel eSIMs are data-only — you get internet, and you make calls/messages over apps like WhatsApp, Telegram or FaceTime. Yesim also markets optional virtual phone numbers that can receive SMS without a physical SIM, useful for OTPs and notifications. Availability and pricing of virtual numbers vary by country, so check the app for what is offered for your destination. For keeping your real Malaysian number reachable, leave your home SIM in the phone (just turn its data off to avoid roaming charges).
Which devices are compatible with Yesim?
You need an eSIM-capable, carrier-unlocked phone. That covers most recent flagships and many mid-range models: iPhone XR/XS and newer, recent Samsung Galaxy S and many Z/Note/A models, Google Pixel 3 and newer, plus various Huawei, Oppo, Motorola and Honor models. Older phones, some China-market variants, and certain budget handsets do not support eSIM. Check Yesim’s compatible-devices list (or dial *#06# and look for an EID number) before buying, and make sure your phone is unlocked from your home carrier.
Is Yesim better than a local Malaysian tourist SIM?
It depends on how long you stay and how much you value convenience. A local Malaysian tourist SIM (CelcomDigi, Hotlink/Maxis, or U Mobile, sold at KLIA and convenience stores) is usually the cheapest per gigabyte and gives you a local Malaysian number for calls — great for a longer stay. Yesim wins on convenience: you install before you fly, get data on landing with no airport queue or passport registration, and keep your existing number. For a short trip, a multi-country itinerary, or anyone who hates queueing at arrivals, a travel eSIM like Yesim is often worth the small premium. For a month-long stay on a budget, a local SIM usually wins on raw price.
Can Malaysians use Yesim when travelling abroad?
Yes — this is one of Yesim’s best use cases. Instead of paying expensive Malaysian roaming, a Malaysian traveller can buy a Yesim country or regional plan (Europe, North America, Asia, or a global package) before departure, keep their CelcomDigi/Maxis/U Mobile/Yes number for OTPs, and use cheap Yesim data abroad. It is paid in USD, so factor in card foreign-exchange/markup, but it typically still beats operator roaming for data-heavy trips.
How do I top up or extend a Yesim plan?
Top-ups are done in the Yesim app or website — you do not need to reinstall the eSIM. When a data pack runs low or a duration is ending, buy another pack or extend, and it loads onto the same eSIM profile. Some plans auto-deduct from a wallet/balance you pre-load. Because everything is software, there is no need to physically swap anything, which is the main appeal versus a plastic SIM.
Does Yesim work in Malaysia for inbound tourists?
Yes. A traveller visiting Malaysia can buy a Yesim Malaysia plan (or a wider Asia/global plan) and have working data on arrival at KLIA, klia2, Penang or Johor without buying a physical SIM. Coverage rides on Malaysian partner networks, so 4G/5G is strong in cities and main tourist areas and thinner in remote regions — the same real-world coverage you would get from a local SIM in those areas.
Final Verdict: 4.3/5
Yesim is a solid, full-featured global travel eSIM. The 200+ country coverage, the choice between cheap pay-as-you-go packs and tethering-friendly unlimited passes, the painless top-ups, and the optional virtual numbers make it a legitimate alternative to the big names. For Malaysians heading abroad it is an easy way to dodge roaming bills, and for tourists landing in Malaysia it gets you online without the arrivals-hall SIM queue.
It is not the outright cheapest option in every case — a local Malaysian SIM still wins on per-GB price for a longer in-country stay, and rivals like Airalo and Nomad can undercut on specific data packs. The fair-usage throttle on unlimited plans and the USD pricing are worth noting. But weighing convenience, flexibility and coverage together, Yesim earns a 4.3/5.
Bottom line: if you have an eSIM-capable phone and want data that just works across borders — whether you're a tourist coming to Malaysia or a Malaysian flying out — Yesim is well worth a look. Just remember it is the travel-eSIM brand, not Malaysia's Yes network. Buy via our link below.
Get a Yesim Travel eSIM
Data in 200+ countries, pay-as-you-go or unlimited, from $0.54/day. Install before you fly — get online the moment you land.
Get Yesim eSIMAffiliate disclosure: we may earn a small commission if you sign up via this link, at no extra cost to you