Best eSIM for Bali & Indonesia 2026: Telkomsel for Nusa Penida & Gilis
Telkomsel is the only carrier with reliable signal on Bali's outer islands — Nusa Penida, Lombok, and the Gilis. A Telkomsel-backed 20 GB tourist eSIM runs about US$15. Coverage and price comparison for 2026.
Published June 28, 2026·Updated August 20, 2026·6 min read
30-day auto-refund on no usageSummary
For 2026 travel in Bali and across Indonesia, a Telkomsel-backed travel eSIM is the safest pick because Telkomsel has by far the best geographical coverage — the only network reliable on Nusa Penida, Lombok, and the Gili Islands. A 20 GB tourist plan runs about US$15.
| Plan | Price | Network | Speed | After daily allowance | IP breakout |
|---|---|---|---|---|---|
| Day Pass · 500 MB/day at full speed · Flexible 1–365 days | US$2.99 | Smartfren / Telkomsel / XL / Indosat / PT Natrindo Telepon Seluler / Fren/Hepi | 5G | 512 Kbps | SG |
| 3.0 GB · 15 days | US$3.99 | Smartfren / Telkomsel / XL / Indosat / PT Natrindo Telepon Seluler / Fren/Hepi | 5G | — | SG |
| 3.0 GB · 30 days | US$3.99 | Smartfren / Telkomsel / XL / Indosat / PT Natrindo Telepon Seluler / Fren/Hepi | 5G | — | SG |
Hotspot and tethering are allowed on every plan we sell. Plans are data-only unless the plan page states otherwise — only selected plans carry calls or SMS. IP breakout is where your traffic exits the network, which is not always the country you are visiting. Prices and networks are read from the same catalogue that powers our machine-readable pricing file, so this table cannot go stale against checkout.
How Indonesian mobile networks work in 2026
Indonesia's main carriers are Telkomsel, XL Axiata, and Indosat. Telkomsel holds roughly 48% market share and the widest reach, especially on the smaller islands; XL is strong in Seminyak, Kuta, Canggu, and Ubud town. Bali itself has good 4G in tourist areas, but coverage gaps appear once you move to outer islands — which is where Telkomsel matters. Most travel eSIMs ride one of these networks, so prioritize a Telkomsel-backed plan for a full Bali circuit.
Which Bali eSIMs actually ride Telkomsel?
The travel-eSIM brands most travelers compare split cleanly on the network question. This is the single filter that matters if your trip goes past south Bali — Nusa Penida, Lombok, and the Gili Islands sit at the edge of the coverage map for XL and Indosat, but well inside Telkomsel's.
| eSIM brand | Rides Telkomsel? | Network(s) used in Indonesia | Outer-island fit |
|---|---|---|---|
| YonoSIM | Yes (5G) | Telkomsel 5G + XL + Smartfren | Excellent |
| Nomad | Yes | Telkomsel | Excellent |
| Saily | Yes (observed) | Telkomsel (not officially published) | Good |
| Holafly | Rotates | XL + Telkomsel + Indosat (not guaranteed which) | Variable |
| Airalo | No | Indosat + 3 (Hutchison) | Weak on outer islands |
Networks verified against each brand's public docs and 2026 third-party reviews (Traveltomtom, Andreon Digital, Bel Around The World). Confirm on your device with the Settings app after activation — the operator name is shown next to the eSIM line.
Indonesia eSIM 2026: who wins on what
Five brands, the same five questions, in every country guide we publish. Coverage figures are each brand’s own published network list; price and plan figures come from esimDB, checked 20 August 2026. Indonesia is one of the markets where we come out ahead — that is not true everywhere, and where it isn’t, these tables say so.
| Category | Winner | Runner-up | On what basis |
|---|---|---|---|
| Widest coverage | YonoSIM | Airalo | 3 networks published vs 2 |
| Cheapest per GB | YonoSIM | Nomad | $0.66/GB vs $0.82 — at 50GB/$32.99/30d |
| Widest plan range | Saily | YonoSIM & Airalo & Nomad | 9 distinct data sizes vs 8 |
| Publishes its network | YonoSIM & Airalo | — | Nomad, Saily, Holafly name no carrier |
| Brand | Networks in Indonesia | Best $/GB | Plans | Sizes |
|---|---|---|---|---|
| YonoSIM | Telkomsel (5G) · XL (4G) · Smartfren (4G) | $0.66 | 68 | 8 |
| Airalo | 3 (Hutchison) + 1 more | $0.89 | 55 | 8 |
| Nomad | Not disclosed | $0.82 | 34 | 8 |
| Saily | Not disclosed | $1.80 | 33 | 9 |
| Holafly | Not disclosed | — | — | — |
Networks are each brand's own published figure. Prices, plan counts, and data sizes via esimDB, checked 20 August 2026. Holafly publishes neither a per-country carrier nor plans on esimDB, so it cannot be scored on price or range here. Plan range is counted in distinct data sizes, not plan count.
Which one to pick
- Island-hopping beyond Bali? YonoSIM publishes the most networks here (Telkomsel, XL, Smartfren), and Telkomsel is the one that holds on Nusa Penida and the Gilis.
- Cheapest data: YonoSIM at $0.66/GB on the 50 GB plan, ahead of Nomad at $0.82 and Airalo at $0.89.
- Want an unusual data size? Saily has the most granular ladder here (9 distinct sizes to our 8).
- Want the data back if you don’t use it? YonoSIM refunds unused data automatically after 30 days; the others require you to ask. Check each brand’s current terms before you buy.
- Buying on price alone? Airalo’s 100 GB / 180-day plan is better value per GB than anything we sell above 50 GB, if you genuinely need that much.
Plan size by trip length
| Trip length | Data | Typical price | Best for |
|---|---|---|---|
| Short stay (3–5 days) | 5 GB | US$4–6 | Maps + messaging |
| 1–2 weeks (full circuit) | 20 GB | US$14–18 | Island-hopping |
| Long stay / remote work | 25 GB or unlimited | — | Uploads, hotspot, calls |
eSIM vs roaming vs pocket Wi-Fi
| Option | Cost | Setup time | Coverage |
|---|---|---|---|
| eSIM (Telkomsel) | Low | ~5 min (pre-install on Wi-Fi) | Excellent (incl. outer islands) |
| Carrier roaming | High | Instant (already enabled) | Medium (partner-dependent) |
| Pocket Wi-Fi | Medium | Airport pickup / rental | Good (extra device to charge) |
Best pick for your trip type
Seminyak / Ubud beach stay: a 5 GB plan handles maps and ride apps. Full circuit (Nusa Penida, Lombok, Gilis): prioritize Telkomsel and size up to 20 GB so signal holds between islands. Long stay or remote work: 25 GB or unlimited for hotspot and calls. Pairing Bali with other Asia stops? Browse YonoSIM's Asia coverage.
FAQ
QWhich travel eSIM brands actually ride Telkomsel in Indonesia?
AYonoSIM, Nomad, and Saily connect to Telkomsel (5G) in Indonesia. Holafly rotates across XL, Telkomsel, and Indosat — which one you land on isn't guaranteed. Airalo's Indonesia plan rides Indosat and 3 (Hutchison), not Telkomsel — coverage is fine in south Bali but weak on the outer islands. If you're going to Nusa Penida, Lombok, or the Gilis, pick a brand with a confirmed Telkomsel connection.
QWhich Indonesian carrier is best for Bali and the islands?
ATelkomsel is Southeast Asia's largest carrier with by far the best geographical coverage, and the only network with reliable signal on smaller islands like Nusa Penida, Lombok, and the Gilis. For anything beyond beach clubs, choose a Telkomsel-backed eSIM.
QHow much data do I need for a week in Bali?
AA standard week of maps, Gojek/Grab, WhatsApp, and social fits 10–20 GB. A Telkomsel-backed 20 GB tourist plan runs about US$15; lighter users can pick a 10 GB plan for less.
QIs there 5G in Bali in 2026?
A5G is available in Denpasar and major Indonesian cities like Jakarta on Telkomsel, fast enough to upload reels or join video calls. Most of Bali still runs on solid 4G/LTE at roughly 15–50 Mbps, which is plenty for travel use.
QDo I need to register a SIM in Indonesia?
APhysical tourist SIMs require passport registration on arrival, but eSIMs skip that entirely. Install and activate before your flight and your data works the moment you land in Denpasar — no kiosk, no paperwork.
Bottom line
For most Bali trips, a Telkomsel-backed travel eSIM is the right call — 5 GB for a short beach stay, 20 GB for a full island-hopping circuit — because Telkomsel holds where others drop on the outer islands. Install before you fly and skip the SIM registration desk.
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Originally published on www.yonosim.com/en/blog/best-esim-bali-indonesia-2026 · YonoSIM — You Only Need One SIM