Samsung Galaxy S23 Dual SIM Travel Settings: A Guide

To use your Samsung Galaxy S23 with dual SIMs while travelling, keep your Canadian physical SIM active for incoming texts and calls while setting a travel eSIM as your primary data source. This is managed through the 'SIM manager' in your device settings, allowing you to avoid expensive roaming fees while maintaining access to banking 2FA. This configuration ensures you never miss a security alert from home while browsing the web on local networks at a fraction of the cost.\n\n## The Dual-SIM Advantage for Canadians\n\nFor many Canadians, the standard procedure for international travel has been to accept the 'Roam Like Home' or 'Roam Better' packages offered by Rogers, Bell, or Telus. While convenient, these services often cost upwards of $15 per day. For a family of four on a two-week vacation in (dest:mx) Mexico or (dest:eu-42) Europe, these fees can quickly spiral into hundreds of dollars. \n\nThe Samsung Galaxy S23 series (including the S23+ and S23 Ultra) offers a sophisticated solution through its Dual SIM Dual Standby (DSDS) technology. This allows you to have two active connections: your physical Canadian SIM card and a digital eSIM. By using a MapleSim travel eSIM for your data needs, you can keep your primary number active for those crucial 2-factor authentication (2FA) codes from your bank, which are often required when logging in from a new IP address abroad. \n\n## Preparing Your S23 for Departure\n\nBefore you head to the airport, there are a few steps to ensure a smooth transition. First, you should check your device's compatibility to confirm your phone is unlocked and supports eSIM technology. Most S23 models purchased directly from Canadian carriers or Samsung Canada are compatible, provided they aren't tied to an unpaid device financing plan that restricts network access.\n\nOnce confirmed, you can see plans and choose a package that fits your destination. Whether you are a snowbird heading to (dest:us) Arizona for the winter or a family exploring the streets of Tokyo in (dest:as-20) Asia, having your data sorted before you land is a major stress-reducer. After purchasing, you will receive a QR code. You can follow our installation guide to add the eSIM to your S23 while you are still on your home Wi-Fi in Canada. This way, the moment the plane wheels touch the tarmac, your data is ready to activate.\n\n## Step-by-Step: Configuring SIM Manager\n\nWhen you arrive at your destination, such as landing at a major hub like London or Paris, you need to tell your S23 which SIM to use for what. \n\n1. Open Settings: Navigate to Connections > SIM manager.\n2. Activate the eSIM: Ensure your MapleSim eSIM is toggled to 'On'.\n3. Set Preferred SIMs: This is the most critical step. \n - Calls: Set this to your 'Primary' (Canadian) SIM. This allows you to receive calls, but be mindful that answering them will likely trigger a roaming charge.\n - Messages: Set this to your 'Primary' SIM so you can receive 2FA texts.\n - Mobile data: Set this to your 'eSIM'. This ensures all your app traffic, maps, and browsing go through your affordable travel plan.\n4. Turn Off Data Switching: In the SIM manager, ensure 'Data switching' is toggled OFF. If left on, your phone might switch back to your Canadian SIM if the eSIM signal is weak, leading to unexpected charges. You can read more about how carriers handle these costs in our look at the Rogers Roaming Cap for Families.\n\n## Global Coverage and Network Realities\n\nWhen you use a travel eSIM, you aren't just getting generic data; you are connecting to local and regional partners. For instance, our regional plan covers 117 countries, providing seamless transitions as you cross borders. In Europe, you will often find 5G connectivity with providers like Orange in France or Proximus and Base in Belgium. If your travels take you to the Balkans, One Albania offers 5G, while Vodafone and Movistar provide robust 4G coverage across much of Europe and (dest:es) Spain. \n\nFor those heading to the Asia-Pacific region, you can expect 5G speeds from Optus in Australia or 3 in various markets. Even in destinations like Azerbaijan, partners like Bakcell provide 5G access. In Latin America, Tigo remains a reliable 4G partner for those vacationing in Mexico or Central America. For a deeper look at planning a trip to the Mediterranean, see our guide for Canadian Families Traveling to Spain.\n\n## Choosing the Right Data Plan\n\nMapleSim offers a variety of 'data only' plans. Because these plans do not include a local phone number, they are significantly more affordable. They are designed for the modern traveller who relies on WhatsApp, FaceTime, or Messenger for voice and video calls. \n\n### Fixed Data Packages\n- 1GB / 7 Days: Perfect for a long weekend in New York or Seattle.\n- 3GB to 10GB / 30 Days: Ideal for a standard two-week vacation, allowing for plenty of GPS usage and social media updates.\n- 20GB / 90 Days: A favourite for snowbirds spending the winter in the southern United States or Mexico.\n- 1GB / 365 Days: A great 'emergency' backup for frequent cross-border shoppers.\n\n### Daily Passes\nIf you are a heavy user who streams video or works remotely, daily passes offering 1GB or 2GB per day (with throttled data thereafter) ensure you never hit a hard cap during your workday.\n\n## Roaming Comparison: Why Switch?\n\n| Feature | Canadian Carrier Roaming | MapleSim Travel eSIM |\n| :--- | :--- | :--- |\n| Daily Cost | High ($12 - $15 CAD) | Low (Prepaid) |\n| Canadian Number | Active | Active (via Dual SIM) |\n| Data Allowance | Uses Home Plan | Dedicated Travel Bucket |\n| Surprise Bills | Common | Impossible |\n| Activation | Automatic (and expensive) | Manual Control |\n\n## Managing Data Usage on the S23\n\nTo make your data last longer, use the S23's built-in tools. Go to Settings > Connections > Data usage to monitor how much you have consumed. We recommend disabling 'Auto-update apps' over mobile data in the Google Play Store settings. While 1GB goes a long way for Google Maps (roughly 200 hours of navigation), it can be consumed in minutes by 4K video streaming. \n\n## The bottom line\n\nUsing the Samsung Galaxy S23 dual SIM travel settings is the most effective way for Canadians to stay connected without overpaying. By designating your MapleSim eSIM for data and keeping your Canadian SIM for essential texts, you balance cost and functionality perfectly. Before your next departure, see plans to find the right fit for your journey and enjoy the peace of mind that comes with a fixed-cost connection.