Choosing the right GPS bike computer can be overwhelming, especially on a budget. This comparison focuses on two popular contenders: the Polar M450 and the Garmin Edge 25, both offering impressive features at an affordable price point. Both devices are compact and easy to use, relying on physical buttons for reliable operation in any weather. While sharing core functionality like speed, distance, and heart rate tracking, key differences exist in connectivity, data analysis, and additional features that will ultimately influence your decision.This in-depth review analyzes the strengths and weaknesses of each device, comparing aspects such as charging methods, sensor compatibility, navigation capabilities, and post-workout analysis. We'll delve into the nuances of their button interfaces, explore their respective mobile app integrations, and highlight unique features like the Polar M450's built-in emergency light and the Garmin Edge 25's smart notifications. By the end, you'll have a clear understanding of which device best fits your cycling needs and budget.
Pros And Cons
- Uses microUSB, same as many phone chargers
- Supports power with Polar Look Keo Power Pedal
- Works with Bluetooth Smart devices (e.g., Polar H7 heart rate belt)
- Includes an emergency light
- Provides training guidance and feedback on session benefits
- Shows training load patterns, recovery time, and helps avoid overtraining/undertraining
- Has a 'Back to Start' feature showing direction and distance home
- Allows following pre-ridden courses
- Includes a barometric pressure sensor for altitude data
- Offers longer battery life (12-16 hours)
- Supports smart features via firmware update
- Doesn't support smart notifications (texts, calls) initially, but firmware update might resolve this
- Small size
- Uses buttons, not a touchscreen
- Supports cadence, heart rate, and external speed sensors
- Works with ANT+ devices
- Supported by Garmin Connect app
- Supports smart notifications (texts, calls)
- Allows following pre-ridden courses
- Uses a bespoke cradle for charging
- Does not support power
- Shorter battery life (8-9 hours)
- Lacks the 'Back to Start' feature and detailed training analysis of the Polar M450
Read more: Garmin Edge 530 Review: Best Value GPS Bike Computer?
Design and Build
Both the Polar M450 and Garmin Edge 25 are compact GPS bike computers, designed for ease of use and portability. The M450 is comparable in size to the older Garmin Edge 400, offering a familiar form factor for those upgrading. The Edge 25 maintains a smaller profile, prioritizing minimalism. Crucially, both devices utilize physical buttons instead of touchscreens, ensuring reliable operation in various weather conditions.
A key difference lies in the button placement. The M450 features four buttons around its base, while the Edge 25 distributes its buttons around the perimeter. Both include backlights for enhanced visibility in low-light situations. This physical button interface enhances reliability and simplifies operation during rides.
Connectivity and Power
The Polar M450 utilizes microUSB for charging, making it convenient as many users already own compatible chargers. The Garmin Edge 25, on the other hand, requires a proprietary cradle, adding extra equipment. While both support heart rate and cadence sensors, the M450 offers power meter compatibility with the Polar Look Keo Power pedals; a feature absent in the Edge 25.
Sensor compatibility differs slightly. The Polar M450 connects via Bluetooth Smart, working seamlessly with devices like the Polar H7 heart rate sensor. The Garmin Edge 25 uses ANT+ for sensor connectivity. Both devices integrate well with their respective mobile apps: Polar Flow and Garmin Connect.
Software and Features
Both devices offer robust functionality, including tracking speed, distance, and heart rate, with optional cadence support. However, the Polar M450 distinguishes itself with its insightful post-workout analysis. After each session, the Polar Flow app provides detailed feedback on training benefits, guiding users to optimize their workouts and avoid overtraining.
The Garmin Edge 25 lacks this in-depth analysis. The M450 also boasts the unique feature of a rear-mounted emergency light that activates when the battery is low. This added safety element is absent in the Garmin Edge 25. Both devices support course following, allowing users to track pre-planned routes.
Smart Notifications and Navigation
Smart notifications, such as incoming calls and text messages, are supported by the Garmin Edge 25 but not yet by the Polar M450 (though this may change with future updates). The M450, however, offers a 'Back to Start' navigation feature using a compass arrow, guiding users back to their origin point—a handy feature lacking in the Edge 25.
Both devices allow for following pre-ridden routes (tracks, not full mapping), providing basic navigation cues. The Polar M450 displays a simple breadcrumb trail, while the Edge 25 presents similar route guidance. The M450 also features a ‘Favorites’ menu for easier access to frequently used routes.
Conclusion and Verdict
Both the Polar M450 and Garmin Edge 25 offer excellent value for their price. The choice depends on individual needs and preferences. The Polar M450 shines with its detailed post-workout analysis, built-in emergency light, and 'Back to Start' navigation, catering to riders who prioritize data-driven training and safety.
The Garmin Edge 25 is a simpler, more streamlined option with good basic functions and smart notifications. Its smaller size and lighter weight might appeal to riders prioritizing minimalism. Ultimately, both devices are strong contenders in the budget GPS bike computer market, and the best choice will depend on individual needs and priorities.