Bullfrog A7 vs X7 hot tubs compared

Both seat 8. They share one shell size, 88 x 88 x 36 in. Prices: the A7 $12,095–$26,395 (maker's A Series starting prices, Oct 2026), the X7 $8,895–$15,195 (maker's X Series starting prices, Oct 2026).

Both are Bullfrog Spas hot tubs, the A7 from the A Series and the X7 from the X Series. Every figure is the maker's own, with a dot that links the page or PDF it came from. Where the published specs differ:

• Water. A7: 528 gal; X7: 395 gal
• Dry weight. A7: 936 lb; X7: 661 lb
• Filled weight. A7: 5,349 lb; X7: 4,924 lb
• Jets. A7: 196–234; X7: 43
• Neck and shoulder jets. A7: available via NeckEase NX and NeckPlus NX JetPaks®…; X7: Advanced Neck and Shoulder Therapy
• Insulation. A7: full foam, 100% closed-cell; X7: High-density full-foam (100% closed-cell)

The A7 is 88 x 88 in, about 54 sq ft and 36 in tall; filled, it weighs 5,349 lb, about 99 lb per sq ft before anyone gets in. The X7 is 88 x 88 in, about 54 sq ft and 36 in tall; filled, it weighs 4,924 lb, about 92 lb per sq ft before anyone gets in. Leave room around the tub for the cover lifter and the service panel, and have a builder check any deck for the filled weight plus people. See hot tub sizes, hot tub weight and what to put a hot tub on.

The A7 runs on 240V with a 50 A breaker. The X7 runs on 240V. The table lists amperage and breaker as each maker prints them. A licensed electrician sizes the circuit and the GFCI protection for the model you buy. See hot tub electrical requirements.

Bullfrog A7: 10 years on the shell structure, 7 years on the shell surface, 5 years on the equipment, 5 years on the plumbing and 5 years on the cabinet.

Bullfrog X7: 5 years on the shell structure, 3 years on the shell surface, 3 years on the equipment, 3 years on the plumbing and 3 years on the cabinet.

Read the warranty card before you sign: labor after year one, travel charges, and whether coverage moves to a second owner. The hot tub warranty comparison lines up every brand.

Bullfrog Spas posts only a series range for the A7: $12,095–$26,395 (maker's A Series starting prices, Oct 2026). Bullfrog Spas posts only a series range for the X7: $8,895–$15,195 (maker's X Series starting prices, Oct 2026). Delivery, the pad, the electrician and the cover lifter are extra. Each model's price and where it comes from: Bullfrog A7 price and Bullfrog X7 price.

• Sit in both, dry is fine, in the seat you would use most. On a running display tub, feel the jets with the back of your hand. Seat depth and where the jets land matter more than the count.
• Climb in and out: step height and the lounger's length suit some bodies and not others.
• Ask for each model's California Energy Commission listing and the warranty card.

The full spec sheets: Bullfrog A7 hot tub and Bullfrog X7 hot tub. The series: Bullfrog A Series.

Other model comparisons: Bullfrog A7 vs A8, Bullfrog A7 vs M7, Bullfrog A7 vs A7L, Bullfrog A6 vs A7 and Bullfrog X7 vs X8.