L20 Boost is the closest EB51 alternative: low-step frame, 20 × 4.0-inch tyres, 10 kg front basket and 25 kg rear rack. Its torque sensor and Boost function should appeal if you want assistance to react quickly at busy junctions or on changing gradients. The catch is easy to feel before the motor starts helping: it weighs 34 kg before groceries or locks. ENGWE's up-to-126 km PAS 1 figure is useful only as its own published benchmark, not a direct cross-brand test.

Air One Pro feels more like a tidy city bike than a cargo bike. Its carbon belt, torque sensor and two-speed automatic drive reduce everyday fuss, while the MIK-compatible rear platform lets you swap bags or baskets. That flexibility is the attraction—and the reason to read the local product page carefully. Battery and accessory bundles vary, so confirm what arrives in the box. If you simply want fitted front and rear carrying space on day one, EB51 is the more straightforward choice.

AGO T makes sense when the grocery run is part of a longer city ride. The mid-drive motor, Gates belt and Enviolo stepless hub give it a smooth, low-maintenance character, and the integrated rear carrier is rated to 25 kg. Most shoppers will use panniers; the front carrier costs extra. It looks slimmer than the fat-tyre bikes, but at about 31 kg with accessories it is not light. Choose it for drivetrain refinement, not for carrying upstairs.

At 22.9 kg in L/XL, E-ACTV 100 is the practical answer for lifts, gates and crowded storage. You are buying a trekking bike to equip, not a finished cargo setup: add the rack, basket and kickstand you need, then check the 120 kg total system limit. Its 356 Wh battery and up-to-70 km Eco claim are modest beside the larger bikes, but that may be enough for short local shops—and the lower weight is useful on every trip.

Fiido T2 is for loads that make an ordinary rack feel small. Its longtail rack is listed to 80 kg within a 200 kg total payload, backed by a 998.4 Wh battery and four-piston hydraulic brakes. That capacity comes with a 39.5 kg bike and a longer turning circle. Measure the route from pavement to parking before buying. Fiido's 136.26 km Eco result was recorded under stated test conditions; treat it as context, not a promise for a cold, hilly and fully loaded trip.