Boating and marine navigation have come a long way, evolving from paper charts and compasses to advanced electronic aids. Today, technology gives us multiple options for navigating on the water, including chartplotters and handheld devices like iPads and iPhones. While dedicated chartplotters remain a staple on many boats, mobile devices offer a flexible, cost-effective alternative that appeals to many recreational boaters.
This article will explore the advantages and limitations of both chartplotters and mobile devices as navigation aids, comparing aspects like functionality, cost, durability, and reliability. This guide should help you decide which option might be best suited to your needs and preferences on the water.
1. What is a Chartplotter?
A chartplotter is a dedicated marine navigation device that combines GPS and nautical charts to provide real-time information about your location on the water. These devices are built specifically for marine environments, often including features like:
- Waterproofing and resistance to harsh weather conditions
- High-visibility screens designed for outdoor use
- Integrated marine-specific functions, such as radar overlay, depth sounding, fish-finding capabilities, and autopilot integration
Chartplotters are essential equipment on most commercial vessels and are widely used by avid recreational boaters due to their reliability and versatility.
Tablets and smartphones, particularly Apple’s iPad and iPhone, have increasingly become viable options for marine navigation due to:
- Portability and ease of use
- Access to a variety of navigation apps, such as Navionics and Aqua Map
- Affordable mapping options and customizable software
Many boaters now use iPads or iPhones alongside—or in place of—a traditional chartplotter. With built-in GPS (or external GPS receivers in some models), mobile devices can provide real-time positioning, chart overlays, and even some additional information, like weather updates.
3. Comparing Key Aspects
A. Display Quality and Visibility
- Chartplotters: Typically have high-brightness, anti-glare screens that are designed for use in direct sunlight. Most models are visible from wide angles and have specialized displays that adjust to different light conditions, including night mode.
- iPad/iPhone: Apple devices have impressive screen quality, but they’re not always ideal for bright, sunny conditions on the water. Glare can be a significant issue, and prolonged exposure to direct sunlight may lead to screen dimming as the device attempts to cool itself down.
B. Durability and Weather Resistance
- Chartplotters: Designed for marine use, these are usually rugged, waterproof, and built to withstand saltwater exposure, high humidity, and temperature fluctuations.
- iPad/iPhone: While iPhones and iPads are not built with marine conditions in mind, many boaters use waterproof cases. These cases can protect against water exposure but may compromise functionality and visibility. Temperature sensitivity is also a concern, as iPads and iPhones can overheat in direct sunlight.
C. Cost
- Chartplotters: Generally more expensive, with entry-level units starting around $300 and high-end models running into the thousands. However, this includes durability and marine-specific features that justify the investment.
- iPad/iPhone: If you already own a tablet or phone, using it as a navigation device can save money. Navigation apps like Navionics cost significantly less than a chartplotter, though you may need additional equipment (like a waterproof case or an external GPS) to make your mobile device more reliable on the water.
D. Functionality and Features
- Chartplotters: Offer advanced, marine-specific features like radar integration, fish finders, AIS (Automatic Identification System), sonar, autopilot control, and network connectivity with other onboard systems. These features make chartplotters more comprehensive for serious boaters.
- iPad/iPhone: Apps like Navionics, Aqua Map, and iNavX provide excellent charting capabilities and support various data overlays, weather, and tide information. However, integration with other boat systems is limited. While apps have come a long way, they generally cannot compete with the full suite of functions a chartplotter offers.
E. Battery Life and Power Supply
- Chartplotters: Typically hard-wired into the boat’s electrical system, so you won’t have to worry about battery life. They can operate continuously as long as your boat has power.
- iPad/iPhone: Battery life can be an issue. Using GPS on a tablet or phone drains the battery faster than standard usage, and on longer trips, you’ll need a reliable charging setup. Mobile devices typically aren’t designed for extended use under direct sunlight, which can cause them to overheat and shut down temporarily.
F. Connectivity and App Updates
- Chartplotters: Often offer updates via SD cards or Wi-Fi, with some models providing limited app functionality. Updates for chartplotters are generally less frequent, but they’re more stable.
- iPad/iPhone: The app-based nature of mobile devices allows you to receive frequent updates and enhancements. Many navigation apps offer affordable, yearly chart updates that include the latest hydrographic data. However, constant updates can sometimes introduce bugs or require you to adapt to new interfaces.
4. Pros and Cons of Each Option
Pros of Chartplotters
- Reliable, durable, and designed for marine conditions
- Superior visibility in all weather
- Full integration with other boat systems
- Unlimited operating time with boat power
Cons of Chartplotters
- Higher upfront cost
- Installation is required (not portable)
- Limited app and data source variety
Pros of iPad/iPhone Navigation
- Cost-effective, especially if you already own a device
- Wide range of apps with regular updates
- Portability—use on any boat or location
- Good for casual and backup navigation
Cons of iPad/iPhone Navigation
- Limited durability and weather resistance
- Short battery life and potential overheating
- Glare issues in direct sunlight
- Limited integration with boat systems
5. Best Use Cases for Each
- Chartplotters: Ideal for dedicated boaters, especially in open water or challenging conditions. If you frequently go on long trips, need integration with other marine systems, or prioritize reliability, a chartplotter is the better choice.
- iPad/iPhone: Great for day trips, inland waterways, or as a secondary navigation tool. For casual boaters or those who want a portable solution for different boats, mobile devices provide flexibility and cost savings.
6. Using Both in Tandem
Some boaters find that combining a chartplotter and an iPad or iPhone provides the best of both worlds. The chartplotter can serve as the primary navigation tool, while the tablet acts as a secondary, easily accessible backup. This setup also allows you to use your mobile device for other boating-related tasks, such as checking weather updates, monitoring tides, or browsing points of interest.
7. Conclusion: Which is Right for You?
Choosing between a chartplotter and a mobile device for marine navigation depends on your needs, budget, and boating habits.
- If you’re a serious boater who needs reliability in various weather conditions, a chartplotter is a sound investment.
- If you’re a casual boater or looking for a portable, budget-friendly solution, an iPad or iPhone may suffice.
- Many boaters find that using both adds a layer of security, ensuring you’re prepared for various scenarios.
With the right setup and approach, either choice—or a combination of both—can keep you safe and confident on the water.
Happy Boating!
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