Is the Edge 840 Solar worth the extra over the Edge 840?

Only if you need the longer runtime or the multi-band GPS. The solar adds up to 6 hours in demanding use and 18 in saver mode, but reviewers find the gain modest in dull light. For most riders the $181 saving on the plain 840 buys more.

Which has better battery life?

The 840 Solar, but only in sunlight. Both do 26 hours in demanding use and 42 in battery saver mode; solar raises those to 32 and 60 hours in direct sunlight.

Does the plain Edge 840 have a touchscreen and maps?

Yes. It has the same 2.6-inch color touchscreen with button control and preloaded Garmin cycle maps with turn-by-turn directions. The differences are solar charging, GNSS and price.

Which is better for mountain biking or dense forest?

The 840 Solar, because multi-band GNSS gives more reliable positioning under canopy. The plain 840 uses single-band GPS, which can drift in tight terrain.

Which lasts longer over years of use?

Both are built to the same IPX7 water resistance and share the same hardware apart from the solar lens and GNSS chip. Battery capacity fades with charge cycles on both; the solar model's top-ups can mean fewer full charges.

Is the Edge 840 good for training?

Yes. It supports Garmin Coach plans, daily suggested workouts and adaptive coaching when paired with a power meter and heart rate monitor, the same as the 840 Solar.

Garmin Edge 840 Solar vs Garmin Edge 840

Both are the same 2.6-inch touchscreen computer with maps, buttons plus touch, and the same 26-hour demanding-use battery. The 840 Solar adds solar charging (up to 32 hours in demanding use, 60 in battery saver) and multi-band GNSS for better accuracy under cover; the plain 840 stops at 26 hours and single-band GPS. At $318.99 at eBay versus $499.99 at Backcountry.com as of November 3, 2026, the plain 840 is the better buy for most riders; pay the extra only if you ride long days off-grid or in dense terrain.

Today the Garmin Edge 840 costs $181.00 less at its best price.

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