Like its predecessor, the GSD S10 holds two Bosch battery packs—buying both extends the range to a 155-mile maximum but adds $800 to the price. There’s something great about the clean design ...

That said, only the top-end GSD S10 and R14 models receive the Smart System, which adds Bosch’s own subscription-based GPS tracking, a remote e-bike lock, e-bike alarm, and over-the-air updates.