Connectivity is essential for seafarers today.
Staying in touch with family, friends, and colleagues while on long voyages is now easier thanks to roaming SIM cards and WiFi solutions.
However, not all ships have reliable internet, and some require costly data usage, limiting communication.
Even when WiFi is available on board, seafarers may face:
- Data limits for free access
- Slow speeds during peak usage
- High costs for pay-per-megabyte services
For these reasons, international and roaming SIM cards have become vital tools for seafarers seeking reliable, cost-effective communication.
An informal survey that I conducted on Facebook reveals that the majority of seafarers have no WIFI in their ships.
Factors to Consider When Choosing a Roaming SIM
Before selecting a SIM card for your next voyage, consider these key factors:
- Coverage Zones – Check if the SIM works in the regions you frequently travel.
- Data Plans – Evaluate monthly, daily, or one-time packages.
- Call & Text Rates – Compare international vs. local costs.
- eSIM Compatibility – Useful for ships without physical SIM support.
- Cost-Effectiveness – Choose SIMs that minimize roaming charges while maintaining reliable connectivity.
These factors help maximize communication efficiency while keeping costs manageable.
Top Roaming SIM Cards for Seafarers
1. My Three (UK & EU)
My Three is ideal for seafarers whose voyages are mainly within the European Union. It offers flexible mobile data roaming plans and predictable costs.
Coverage & Benefits
- Works in 71 “Go Roam” countries within the EU.
- Allows internet, calls, and texts without extra roaming charges in Go Roam destinations.
- Outside the Go Roam zone, usage incurs standard international roaming rates.
Data Plans & Pricing
| Top-Up Amount | Data Pack | Duration | Notes |
|---|---|---|---|
| GBP 10 | 10GB | 1 month | Basic plan |
| GBP 15 | 50GB | 1 month | Most popular |
| GBP 35 | Unlimited | 1 month | All-you-can-use internet |
Tip: “Top-up” means recharging your SIM to convert funds into Data Packs, which are required to activate internet service.
Why Seafarers Like My Three
- Easy activation – purchase SIM at UK ports like London or the Thames.
- Predictable rates in multiple EU ports.
- Unlimited data option is useful for shore leave or when staying in port for extended periods.
2. BNE SIM – Global Data SIM Card
BNE SIM is designed for global travelers and seafarers, offering internet, calls, and texts across 200+ countries.
Key Features
- Eliminates roaming charges in covered countries.
- Offers both physical SIM and eSIM, the latter being ideal for modern smartphones without changing SIM slots.
- Flexible data plans: one-time, daily, or monthly subscriptions.
- One-time plans do not expire, making them ideal for responsible, low-usage seafarers.
Data Plans & Pricing (Europe Example)
| Plan Type | Data | Cost (USD) | Notes |
|---|---|---|---|
| One-Time | 5GB | $10 | No expiration, ideal for occasional internet use |
| Monthly | Varies | Varies | Renewable, instant activation |
| Daily | Varies | Varies | Short-term usage, flexible |
Note: Rates vary by region. Visit BNE SIM’s website for updated pricing in Asia, the Americas, or Africa.
Why BNE SIM Works for Seafarers
- No expiration on one-time plans ensures no wasted credits.
- Global coverage reduces reliance on expensive local roaming SIMs.
- eSIM option allows instant activation without physical delivery.
3. ChatSim & ChatSim 2
ChatSim specializes in unlimited messaging via chat apps, perfect for seafarers who prioritize text communication over data-heavy activities.
ChatSim 1 – Unlimited Chat
- Supports WhatsApp, Facebook Messenger, WeChat, and other major chat apps.
- Works in 165 countries, automatically connecting to the best network.
- Cost: Php2,000/year (~$37) after Php900 activation.
- Limitations: Does not support photos, videos, or voice calls without additional credit packs.
Multimedia Credit Packs
| Credits | Cost (PHP) | Usage Example |
|---|---|---|
| 2,000 | 1,145 | 200 photos, 40 videos, or 80 call minutes in Zone 1 |
| 5,000 | 2,645 | Zone-dependent, larger multimedia usage |
| 10,000 | 5,145 | Maximum coverage for heavy use |
Zones affect credit consumption; most countries fall under Zones 1–2.
ChatSim 2 – Internet + Unlimited Chat
- Upgrade from ChatSim 1 to access full internet usage alongside unlimited chat apps.
- Works in 165+ countries, same zone system as ChatSim 1.
- Cost: Php4,490 (~$92) for 1GB of data + unlimited chat for 12 months.
- 30-day data credit validity ensures monthly renewal of internet access.
Why Seafarers Choose ChatSim 2
- Ideal for seafarers with short port calls or those who need consistent messaging capabilities.
- Chat apps do not consume the data included in the plan, making it cost-efficient.
- Internet access allows browsing, app usage, and multimedia in addition to unlimited chat.
4. Globe Telecom Seafarer SIM (Philippines)
Globe Seafarer SIM is a collaboration between Globe Telecom and iVittamobile, providing low-cost international communication for Filipino seafarers.
Key Features
- Two numbers: International and local Globe number.
- Free 5 international texts per month for 12 months.
- Affordable call rates to the Philippines (as low as Php30/min).
- Various data roaming packages:
| Package | Cost (PHP) | Data | Duration |
|---|---|---|---|
| Roam Viber | 199 | Viber chat & calls | 24 hours |
| Roam Facebook | 199 | Messenger | 24 hours |
| Roam Surf 299 | 299 | 50MB | 24 hours |
| Roam Surf 399 | 399 | 80MB | 24 hours |
Note: Visit Globe’s official website for updated rates and coverage zones.
5. Smart Roaming (Philippines)
Smart Roaming is ideal for cost-conscious seafarers who want SMS and limited data abroad.
Key Services & Tips
TXTIPID – Cheap SMS Rates
- Dial *133# to subscribe.
- Rates as low as Php2/80 characters when sending abroad.
- Subscription examples:
| Code | Cost (PHP) | Texts | Validity |
|---|---|---|---|
| 133100# | 100 | 50 | 7 days |
| 133150# | 150 | 75 | 15 days |
| 133200# | 200 | 100 | 30 days |
| 133300# | 300 | 150 | 60 days |
Marino TextMate – SMS-only Service
- Exclusive for Filipino seafarers.
- Cost: Php100 for 100 units (1 unit = 1 PHP).
- Validity: 30–120 days depending on units loaded.
Smart Chat Abroad – Data Roaming for Chat Apps
- Supports 6 popular messaging apps: Facebook Messenger, WhatsApp, Viber, WeChat, Line, Telegram.
- Daily rate: Php150.
- Excludes video calls, VoIP, and browsing outside apps.
Surf Abroad – Flat-Rate Data Roaming
- Php550/day for email and social media access.
- Bandwidth-heavy activities (streaming, torrenting, file sharing) are not supported.
Tips for Maximizing Internet and Connectivity at Sea
Even with the best SIM cards, internet access on board can be tricky.
Here are practical tips for seafarers:
- Use WiFi when available – Connect to shipboard WiFi first to save on data roaming costs.
- Activate SIM data selectively – Only turn on data when needed to avoid accidental high charges.
- Download offline content – Messaging apps, maps, and news for offline use.
- Schedule peak usage times – Internet speed may slow during peak hours on board.
- Use messaging-focused SIMs – ChatSim or ChatSim 2 are ideal for text-heavy communication.
- Keep multiple SIMs – A combination of local SIMs and global eSIMs can ensure continuous connectivity.
Quick Comparison Table: Top Roaming SIMs for Seafarers
| SIM Provider | Coverage | Data Plan | Call/Text Rates | Cost | Type |
|---|---|---|---|---|---|
| My Three | 71 EU Go Roam countries | 10GB–Unlimited | Standard EU rates | GBP10–35 | Physical SIM |
| BNE SIM | 200+ countries | One-time, Daily, Monthly | Eliminates roaming charges | $10+ | eSIM & Physical SIM |
| ChatSim 1 | 165 countries | Unlimited chat | N/A | Php2,000/yr | Physical SIM |
| ChatSim 2 | 165 countries | 1GB + Unlimited chat | N/A | Php4,490/yr | Physical SIM |
| Globe Seafarer SIM | Global (focus PH) | Roam Surf, Viber, Facebook | Php30/min calls, free texts | Php199–399 | Physical SIM |
| Smart Roaming | 130+ countries | TXTIPID, Surf Abroad, Chat Abroad | Php2–150 | Php100–550 | Physical SIM |
Note: Costs and coverage are subject to change. Always check the official SIM provider websites for updated rates.
FAQs – Roaming SIMs for Seafarers
Q1: Which SIM works best in the EU?
A1: My Three is ideal for seafarers in Europe due to its 71 Go Roam countries and affordable data packs.
Q2: Can I use eSIMs on all ships?
A2: Most modern smartphones support eSIMs. Check your device before relying solely on eSIM connectivity.
Q3: Which SIM is best for text-heavy communication?
A3: ChatSim or ChatSim 2 are perfect for unlimited messaging without consuming data credits.
Q4: Are there cheap options for seafarers?
A4: Globe Seafarer SIM, and Smart Roaming offer cost-effective call and text rates back to the Philippines.
Q5: Can I use multiple SIMs together?
A5: Yes! Combining local SIMs, global eSIMs, and messaging-focused SIMs ensures continuous connectivity and cost efficiency.
Conclusion & Call-to-Action
Staying connected at sea doesn’t have to be expensive or unreliable.
Choosing the right roaming SIM depends on your route, data needs, and preferred communication method.
💡 Pro Tip: Keep at least two SIM cards on hand- one for internet-heavy use and one for calls/texts, to maximize connectivity while minimizing costs.
Which SIM card do you use on your voyages? Share your experiences in the comments below and help fellow seafarers stay connected!
May the winds be in your favor.
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