The PowerSmart 21” 140cc self-propelled mower uses a Briggs & Stratton EX550 engine. That’s a reliable powerplant you’ll find in many commercial-grade machines, which gives this mower a leg up in the budget gas category. The engine starts quickly thanks to an auto choke system and easy-pull recoil. No priming, no fuss. The self-propelled drive handles moderate slopes and medium-sized lawns without you breaking a sweat.

The 3-in-1 functionality works as advertised. Switch between bagging, mulching, and rear discharge with a single lever. The bag collects clippings cleanly, and the mulching action chops grass finely enough to disappear into the turf. The 21-inch steel deck cuts a solid path and handles uneven ground without excessive vibration. It’s not the lightest mower on the market, but the self-propelled system compensates for the weight. The alloy steel build feels durable enough for a few seasons of regular use.

One honest note: the cutting height adjustment uses a single lever, which is convenient, but the range is limited compared to more expensive models. It works best for standard lawn heights. If you let the grass get too tall, you’ll need to take multiple passes. For the price, this is a capable machine that prioritizes reliability over frills. It’s a straightforward choice for homeowners who want gas power without the premium price tag.