Quick verdict: Choose the eTrex SE for replaceable AA batteries and straightforward handheld navigation. Choose the Solar when its built-in rechargeable battery and multi-band support fit longer or more demanding trips. Solar charging is conditional; the model name does not guarantee endless power in a shaded Canadian forest.
Research-based buying guide. No hands-on testing is claimed. As an Amazon Associate, Time to Get Outside earns from qualifying purchases.
| Decision | eTrex SE | eTrex Solar |
|---|---|---|
| Battery type | Two AA batteries | Built-in rechargeable lithium-ion |
| Listed GPS-mode battery life | Up to 168 hours standard mode | Up to 200 hours GPS-only |
| Multi-band support | Not the Solar’s multi-band option | Available |
| Solar promise | Not applicable | Unlimited claim requires 75,000 lux conditions |
Start with how you prefer to manage batteries
The SE accepts two AA batteries, including supported alkaline, NiMH and lithium types. The Solar has a built-in rechargeable lithium-ion battery. If you already carry and manage spare AAs, the SE fits that routine. If you prefer recharging equipment before a trip, the Solar may fit the rest of your kit better.
Neither approach wins automatically. Carrying spare cells is simple only if you actually pack the correct replacements. An internal battery is convenient only if your charging plan suits the trip. Include cold weather, trip length and the chance of forgetting a recharge when deciding which system you trust yourself to maintain.
What the Solar upgrade actually adds
Garmin’s shared manual makes the multi-band setting available on the eTrex Solar. This is a separate reason to consider the upgrade, rather than treating the two units as identical navigators with different charging panels.
That feature does not mean this guide can promise a particular accuracy improvement on your favourite trail. We have not measured either receiver side by side under trees or against cliffs. If navigation in challenging reception conditions is your reason for spending more, read Garmin’s model comparison and consider that feature alongside the interface and route functions you will use.
Put the battery claims in their proper modes
Garmin lists up to 168 hours in standard mode for the SE. For Solar, the manual lists up to 200 hours GPS-only and up to 100 hours with GNSS and multi-band tracking. The distinction matters: the attractive longest runtime and the more demanding receiver setting are not the same operating condition.
For the Solar’s unlimited-battery claim, Garmin specifies 75,000 lux conditions. Do not turn that condition into a guarantee for short winter days, overcast weather, forest shade or a unit tucked in a pocket. Buy a device whose ordinary battery plan works for your route, then treat useful sunlight as an advantage.
Navigation is different from satellite communication
These are hiking navigators. Do not assume that buying a Garmin handheld also buys the inReach satellite messaging and SOS features found in other Garmin product lines. Match the actual functions to the trip rather than purchasing by brand recognition.
Practise recording a track, finding a saved point and using your backup navigation before depending on unfamiliar equipment. A sophisticated receiver is less valuable if the controls interrupt every junction decision. For familiar local paths, your existing navigation setup may already do the job without another dedicated device.
Who should buy—and who should skip?
Choose eTrex SE: You prefer replaceable cells, want long listed runtime and do not have a specific reason to pay for the Solar’s extra receiver feature.
Choose eTrex Solar: You want the rechargeable design, understand the sunlight condition and have a clear use for multi-band support.
Skip the purchase: You need satellite communication rather than navigation, or an existing suitable device and backup already cover your routes.
Final buying recommendation
The SE is the value-minded choice for a hiker who likes spare AAs. Solar is worth considering when its receiver features and rechargeable power approach both solve real needs. I would not pay the premium solely because ‘unlimited’ sounds reassuring without checking the conditions behind it.
Compare U.S. and Canadian listings
These buttons open product searches. Match the exact model, size, generation, seller and included accessories; they do not guarantee stock or a fixed price. Canadian shoppers should compare the final total in Canadian dollars, including shipping and any import charges.
Related outdoor buying guides
Sources and research notes
Product details checked October 16, 2026. Specifications and limits below come from the manufacturers; buying recommendations are editorial judgments, not independent performance measurements.
