Buy the Flexzilla unless the zero-G’s woven jacket, 600-plus-psi burst rating, and crush-resistant coupling design are the specific reasons you are shopping.
The Flexzilla wins because its manufacturer gives a balanced, homeowner-friendly specification set. The selected hose is 5/8 inch by 50 feet, made from flexible hybrid polymer, and fitted with 3/4-inch GHT ends. Flexzilla says the hose resists kinking under pressure, coils easily, lays flat with zero memory, has an abrasion-resistant outer cover, and uses a durable O-ring for a leak-free connection. It also publishes a maximum working pressure of 150 psi at 70°F and a -40°F to 140°F temperature range. That is a coherent set of details for ordinary sprinklers, watering wands, planters, and weekend cleanup.
zero-G is not a consolation prize. Its official page makes a real case for buyers who want a compact, fabric-jacket format. The 4001-50 is also a 5/8-inch, 50-foot hose. Apex describes a G-Force high-density woven jacket, pliable inner core, improved ergonomic grips, commercial-grade crush-resistant couplings with female brass threads, 600-plus-psi burst resistance, and storage in a 5-gallon bucket. Those are meaningful reasons to choose it for a frequently moved hose or a routine where abrasion resistance and compact stowage lead the brief.