Garmin Edge 

Garmin Edge 130 Plus 

• Navigation: Basic, breadcrumb-style with no basemap
• Training data: Basic speed, distance, time, elevation, heart rate and power data field, mountain bike metrics and ClimbPro
• Connectivity: USB, ANT+, Bluetooth
• Compatibility: ANT+, Garmin Varia, Connect IQ
• Size: 40×62×17mm
• Screen: 27×36mm, black and white

Garmin Explore 2

• Navigation: Excellent, thanks to trifold GPS, GLONASS and Galileo satellite input, this Garmin is adept at exploring; it can store 100 routes
• Training data: Speed, distance, time, ClimbPro, heart rate, power, but not advanced metrics such as left-right balance or training load
• Connectivity: USB-C, ANT+, Bluetooth
• Compatibility: ANT+, Garmin Varia, smart trainer and power meter
• Size: 106.1x55.7x20.6mm
• Screen: 3in, 240x400 pixels colour and touchscreen

Garmin Edge 530

• Navigation: Good, aimed primarily at following courses created in advance, with excellent turn-by-turn instructions and hazard warnings. Non-touchscreen means browsing maps is mostly a waste of time
• Training data: Speed, altitude, power, heart rate, cadence, calories, gear selection (for electronic drivetrains), distance, time, temperature, navigation, performance monitoring and more
• Connectivity: USB, Bluetooth, BLE, WiFi
• Compatibility: ANT+ and ANT+ shifting, power meter and bike trainer, Shimano Di2, Vector power meter, Garmin Varia and VIRB
• Size: 85×51×16mm (20mm total including protruding mount)
• Screen: 38×51mm (2.6in diagonal), 246×322 pixel colour screen (non-touchscreen)

Garmin Edge 540 & Edge 540 Solar

• Navigation: Multi-band GNSS technology is claimed to improve navigation
• Training data: Speed, altitude, power, heart rate, cadence, calories, gear selection (for electronic drivetrains), distance, time, temperature, performance monitoring
• Connectivity: USB-C, Bluetooth, ANT+, WiFi
• Compatibility: ANT+ shifting, power meter and smart trainer, heart rate monitor, Shimano Di2, Vector power meter, Garmin Varia and VIRB
• Size: 57.8x85.1x19.6 mm
• Screen: 2.6in (66 mm) diagonal, 246x322 pixels, colour non-touchscreen

Garmin Edge 830 

• Navigation: Good, maps and navigation features are easy to understand and it’s relatively simple to programme routes. On-device route calculation isn’t great, though
• Training data: Speed, altitude, power, heart rate, cadence, calories, gear selection (for electronic drivetrains), distance, time, temperature, navigation, performance monitoring and more
• Connectivity: USB, Bluetooth, BLE, WiFi
• Compatibility: ANT+ and ANT+ shifting, power meter and bike trainer, Shimano Di2, Vector power meter, Garmin Varia and VIRB
• Size: 48x74.5mm
• Screen: 50x82mm, 246x322 pixels, colour touchscreen

Garmin Edge 840 & Edge 840 Solar

• Navigation: Multi-band GNSS technology is said to enhance navigation
• Training data: Speed, altitude, power, heart rate, cadence, calories, gear selection (for electronic drivetrains), distance, time, temperature, Adaptive Coaching, Power Guide, ClimbPro 2.0
• Connectivity: USB-C, Bluetooth, ANT+, WiFi
• Compatibility: ANT+ shifting, power meter and smart trainer, heart rate monitor, Shimano Di2, Vector power meter, Garmin Varia and VIRB
• Size: 57.8x85.1x19.6mm
• Screen: 2.6in (66mm) diagonal, 246x322 pixels, colour touchscreen

Garmin Edge 1030 Plus

• Navigation: Even clearer than the 830, using a larger screen with the same updated processor for quicker route recalculation
• Training data: A bewildering number of training metrics that can be customised to your heart's content
• Connectivity: ANT+, Bluetooth, WiFi, USB
• Compatibility: ANT+, Shimano Di2, SRAM eTap, Campagnolo EPS, Garmin Varia
• Size: 59x114x19mm
• Screen: 3.5in/89mm colour touchscreen, 282x470 pixels

Garmin Edge 1040 & 1040 Solar

• Navigation: Every bit as good as the 1030 Plus with a faster processor for quicker route recalculation
• Training data: A bewildering number of training metrics that can be customised to your heart's content
• Connectivity: ANT+, Bluetooth, WiFi, USB-C
• Compatibility: ANT+, Shimano Di2, SRAM eTap, Campagnolo EPS, Garmin Varia
• Size: 59x118x20mm
• Screen: 3.5in/89mm colour touchscreen, 282x470 pixels

Garmin Edge 1050

• Navigation: Updated on-device route planning and easy toggling between overlays
• Training data: More training metrics than you will ever know what to do with
• Connectivity: ANT+, Bluetooth, WiFi, USB-C
• Compatibility: ANT+, Shimano Di2, SRAM eTap, Campagnolo EPS, Garmin Varia
• Size: 60.2x118.5x16.3mm
• Screen: 3.5in/89mm colour touchscreen, 480x800 pixels