Tennibot Partner V2 vs. ACEII One — Tennis Comparison
| Tennibot Partner V2 | ACEII One | |
|---|---|---|
| Price | $2,245 | $1,099 (Kickstarter); ~$2,099 retail |
| Mobility | Autonomous movement with player tracking | Advertised autonomous movement |
| Max Ball Speed | 10–70 mph | Up to 80 mph |
| Ball Capacity | 140 balls | 120 balls |
| Battery Life | ~4–5 hours | ~2 hrs active (8 hrs feed) |
| Battery Type | 10.5Ah Makita-compatible | Removable lithium |
| Max Spin | 3,000 RPM | Not clearly specified |
| Charge Time | 90 minutes | ~2 hours |
| AI Features | Player tracking, court vision | Dual 1080p cameras (as advertised) |
| App Control | Full mobile app (real-time control + drill customization) | iOS/Android (as advertised) |
| Weight | 35.4 lbs | Not clearly specified |
| Dimensions | 17.7″ x 22.6″ x 21.5″ | Suitcase-style design |
| Safety | Human detection sensors | No safety features specified |
| Guarantees | 60-day money back | Kickstarter terms apply |
| Warranty | 3 years | Not clearly specified |
| Made in USA | Yes 🇺🇸 | No |
"I backed ACEII on Kickstarter but it kept getting delayed. I needed a machine now, not eventually. Bought the Partner and it's exceeded expectations — the AI tracking is legit."
Bottom Line:
ACEII One is a Kickstarter-funded ball machine that raised ~$825K from 679 backers with ambitious AI and mobility claims in a portable suitcase design.
But as of March 2026, it hasn't shipped (pushed to May 2026). It claims only 2 hours of active battery life, holds fewer balls, uses 1080p cameras (vs 4K), and has no established warranty or support infrastructure.
ACEII is a promising concept. The Tennibot Partner is a proven product you can buy and use today with a 60-day guarantee and 3-year warranty.
Sources
- Tennibot Partner V2 specs — tennibot.com/specs/partner-v2
- ACEII One Kickstarter campaign — kickstarter.com
- Full ball machine comparison — tennibot.com/compare
ACEII specs are based on Kickstarter campaign materials. Product has not shipped as of March 2026.
Frequently Asked Questions
Has ACEII One shipped yet?
No. ACEII One ran a successful Kickstarter (679 backers, ~$825K raised) with an original delivery estimate of December 2025. As of March 2026, delivery has been pushed to May 2026. The Tennibot Partner is available for immediate purchase and shipping.
How does ACEII compare to Tennibot?
ACEII One claims dual-camera AI, court movement, and gesture controls in a portable suitcase design. However, it hasn't shipped, has only 2 hours of active battery life (vs 4–5 for Tennibot), holds 120 balls (vs 140), uses 1080p cameras (vs 4K), and has no established warranty or support. Tennibot Partner is a proven, shipping product.
Is the ACEII One suitcase design practical?
The all-in-one suitcase concept (machine + balls + racket holder) is appealing for portability. However, fitting a ball machine, 120 balls, and a racket into one case likely involves compromises on ball capacity and machine size. The Tennibot Partner holds 140 balls and is designed for performance first.
Does ACEII One really use gesture controls?
ACEII claims touch-free controls: wave to start, clap to pause. These are unverified manufacturer claims from pre-launch materials. Real-world gesture recognition in outdoor environments (wind, sun, multiple people) is technically challenging. The Tennibot Partner uses a proven mobile app interface.
Should I back ACEII One or buy Tennibot?
ACEII One's Kickstarter has ended but the product hasn't shipped (estimated May 2026). Crowdfunding carries risk: delayed timelines, evolving specs, and uncertain support. The Tennibot Partner ships today with a 60-day money-back guarantee, 3-year warranty, and established customer support.
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