2026 Comparison
5 models compared on the criteria that matter when leaving cell coverage: voice, bidirectional SMS, useful data, battery life, coverage, and actual subscription cost. Workshop recommendation by navigation program. Transparent mention of Starlink Mini Marine as an alternative (not distributed by Skysat; Scanstrut installation kit available).
Garmin
348 € HT
Pour qui : Solo racing, Mini-Transat, committed sailing without voice needs, budget-conscious
View inReach Mini 3 PlusGarmin
279 € HT
Pour qui : Coastal cruising 2 months/year, budget < €400 ex-VAT, need SOS + short updates ashore
View Messenger PlusIridium
1573 € HT
Pour qui : 35-50 ft offshore sailboat, transatlantic, polar navigation, crew 2-6, emergency voice needs everywhere
View 9575 ExtremeIridium
1143 € HT
Pour qui : 35-50 ft offshore sailboat, crew using smartphones, data limited to emails + compressed GRIB
View Iridium GOIridium
2106 € HT
Pour qui : 45+ ft sailboat on round-the-world voyage, onboard remote work, crew needing daily email/light web
View GO Exec2026 distributor prices excluding VAT for France, terminal only (excluding subscription, excluding installation). Starlink Mini Marine listed as a reference — not distributed by Skysat, see installation kit.
| Criteria | inReach Mini 3+ | Messenger Plus | Iridium 9575 Extreme | Iridium GO | Iridium GO Exec |
|---|---|---|---|---|---|
| Type | Messager satellite (SMS/SOS) | Messager satellite (SMS/SOS) | Téléphone satellite (voix) | Hotspot Wi-Fi satellite | Hotspot data premium |
| Terminal price ex-works | ~ 348 $ | ~ 279 $ | ~ 1,573 $ | ~ 1,143 $ | ~ 2,106 $ |
| Native sat voice | No | Short voice notes | Native | Via smartphone app | HD via app |
| Bidirectional SMS | Yes | Yes | Yes | Yes via app | Yes via app |
| Useful data | SMS only | SMS + short audio | 2.4 kbps (slow modem) | 2.4 kbps (text emails) | 88/22 kbps (email + light web) |
| Coverage | Global (Iridium) | Global (Iridium) | Global + poles | Global + poles | Global + poles |
| Battery life | 14 days (tracking 10 min) | 28 days (tracking 10 min) | 4 h talk / 30 h standby | 15.5 h active | 5 h active / 10 h dockside |
| Waterproofing | IPX7 | IPX7 | IP65 + MIL-STD-810F | IP65 | IP65 |
| Min. indicative subscription | ~ $15/month (Garmin Standard) | ~ $15/month (Garmin Standard) | Prepaid from ~ $30/month equivalent | ~ $80/month (Iridium GO plan) | ~ $150/month (Certus 100) |
Our recommendation based on navigation software, derived from 8 years of Skysat satellite installations (single-handed racing equipment, offshore cruising, transatlantic, round-the-world).
Solo safety
The Garmin inReach Mini 3 Plus (348 € HT) is the French solo racing standard: 24/7 Iridium SOS, bidirectional SMS for family life line + routing team, 100 g in a waterproof pocket. No voice calls — it’s intentional; you’re not buying a phone, you’re buying a life insurance weighing 100 g.
Total budget (terminal + 1-year Garmin Standard subscription): ~ $530 USD ex-works
View inReach Mini 3 PlusCoastal cruising
The Garmin inReach Messenger Plus (€279 ex-VAT) adds short voice notes compared to the Mini 3. Not a true sat voice call, but sufficient for messages like 'we’ve arrived safely at Cala Galera, flat calm'. 28 days of tracking autonomy without recharging — useful on 30-foot sailboats with limited battery capacity.
Total annual budget (terminal + subscription): ~ 460 € HT
View Messenger PlusOffshore
The Iridium 9575 Extreme (€1,573 ex VAT) has been our offshore workshop standard for 15 years. Native voice without smartphone dependency (hence reliable if onboard avionics fail), integrated fold-out antenna (no drilling required), IP65 + MIL-STD-810F (withstands green water and drops). For email and compressed weather data if the crew uses smartphones, add an Iridium GO.
Combined budget 9575 + GO + 1-year subscriptions: ~ 3,800 € HT
View Iridium 9575 ExtremeCircumnavigation
The Iridium GO Exec (€2,106 ex-VAT) on Certus 100 is our "reasonable" sat ceiling: 88 kbps download allows sending emails with attachments, downloading high-resolution GRIB files, and making HD calls via the app. Beyond that — video streaming, video calls — you need to switch to Starlink Mini Marine (~€650 ex-VAT terminal + $50–$80/month Roam Global). Skysat does not distribute the Starlink terminal directly, but we supply the installation kit (Scanstrut watertight pass-through, high-quality cables).
Total budget GO Exec + 1-year Certus subscription: ~ 4 000 € HT — or Starlink Mini ~ 1 500 € HT terminal + 1-year Roam
View GO ExecThe 3 mistakes that come up when a customer chooses their satcom equipment without consulting us.
The standard GO tops out at 2.4 kbps. That’s 1980. You can send a 200-word text email in 2 minutes. You can’t load a web page, make a WhatsApp video call, or download an uncompressed weather chart. For real data: GO Exec (Certus 100) or Starlink Mini.
The Garmin inReach Mini 3 Plus and Messenger Plus are SMS communicators; they are not phones. They send text messages (160 characters). The Messenger Plus can record short voice notes — but not live calls. To hear a loved one’s voice offshore, you need an Iridium 9575 or GO.
The Starlink antenna is easy to mount — but the PoE cable running down from the deck requires a correctly sized watertight deck gland (Ø30 mm = Scanstrut DS30-SL-BLK). Without it, a leak is guaranteed at the first slamming wave. And plugging the 12 V power supply directly without an isolated converter will fry the power rectifier within 6 months of saltwater sailing.
4 questions to identify the satellite terminal suited to your program and annual budget (terminal + subscription).
Skysat no longer distributes the 9555 (obsolete model replaced by the 9575 Extreme — improved IP65 rating + MIL-STD-810F + integrated GPS). The Inmarsat IsatPhone 2 is not sold by Skysat — its geostationary satellite coverage depends on a visible horizon (problematic at high latitudes and near landmasses). The Iridium LEO ecosystem covers 100 % of the globe without conditions. For our offshore sailing clientele, this is more relevant.
Yes, provided you have a Roam Global subscription (€50 or €80/month; check the exact coverage area before departure — central Pacific remains partial in 2026). Continuous sea coverage in the Mediterranean and North Atlantic. Since the Starlink constellation is in LEO (~550 km), the throughput is equivalent to terrestrial use. Real limitation: 12 V power consumption (25–50 W), so proper wiring and surge protection are mandatory.
The Mini 3 Plus (€348 ex VAT) is more compact (100 g vs 113 g), more physically durable, and has a sun-readable color screen. The Messenger Plus (€279 ex VAT) is cheaper, adds short voice notes (2025 new feature), and lasts 28 days on 10-minute tracking vs 14 days for the Mini 3. Solo racing / grab bag: Mini 3. Crewed cruising with family voice notes needed: Messenger Plus.
The standard GO (€1,143 ex VAT) caps at 2.4 kbps — the speed of a 1990s analog modem. Sufficient for: short text emails, compressed weather GRIB files (XGate, PredictWind), SMS, voice via app. Not sufficient for: large attachments, normal web browsing, video calls. The Exec GO (€2,106 ex VAT) runs on Certus 100 (88 kbps DL) = real email with attachments, light web browsing, HD voice. The Certus plan is ~2× more expensive (~€150/month) but offers incomparably more comfort. Our workshop recommendation: if you stay at sea 6+ months = Exec GO, otherwise standard GO.
For seasonal use (transatlantic race + 3 months cruising then boat ashore): prepay. Load 200 or 500 minutes, which roll over. No inactive monthly subscription. For continuous use (round-the-world, professional charter): postpay with included monthly package, more cost-effective beyond ~50 minutes/month. Skysat distributes both models — we calculate your break-even point when purchasing the terminal.
Skysat does not distribute the Starlink terminal (not part of our product range at this time — we focus on mature LEO + GEO satcom solutions with professional SLA such as Iridium). However, we supply and install the deck integration kit: waterproof pass-through Scanstrut DS30 or DS16 depending on cable diameter, high-quality extension cables (8 m or 30 m), 12 V → AC or marine PoE converter for clean power supply. See Starlink installation collection.
Skysat has distributed Iridium and Garmin (inReach) since 2018. Comparator based on 200+ marine satellite installations from 2020–2026, including solo racing, offshore cruising, transatlantic races, and round-the-world voyages. 2026 indicative distributor prices in France — operator subscriptions not included, rates vary by operator (Iridium Direct, MSat Communications, Skytrac, etc.). Starlink Mini Marine listed as a technical reference — Skysat does not distribute the terminal but offers the Scanstrut installation kit.
