Sillbird Building Robot Kit B905 review
A multi-build robot project that turns assembly into part of the fun.
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We recommend the Sillbird B905 for families looking for a substantial, hands-on robot-building activity rather than a ready-made toy. The 773-piece kit supports five builds, with app and remote controls, giving builders several ways to bring the finished models to life. It is best for a child who enjoys assembling parts with age-appropriate help; the experience depends on the build, not just the robot at the end.
Builders aged 8+ who enjoy following a project, making several robot designs and choosing between app or remote control
- Kit
- B905 building robot kit
- Pieces
- 773
- Build options
- Five models, manufacturer listing
- Recommended age
- 8+
The quick answer
The Sillbird B905 is a flexible robotics kit for builders aged 8 and up who want to assemble and control more than one model. Its 773 pieces form five possible builds, with Bluetooth app and remote-control options. We like it as a shared project for a young maker; check the instructions, adult support and required batteries before ordering.
Why we like it
- Five build configurations make one kit useful for several projects
- The 773-piece set offers a meaningful hands-on assembly activity
- App and handheld remote options give builders two control paths
- Programming features add room to explore after the first build
Before you buy
- The 8+ age guidance is a starting point; younger builders may need adult help.
- The finished robot is only part of the value, so this is a poor fit for a child who wants instant play.
- Check battery requirements and app compatibility before gifting.
The building is the feature
The B905 is most appealing to a child who enjoys making a machine, not just switching one on. Its 773 pieces and five-build format offer a longer project with a clear next step after the first model. That can make the set a better shared activity than a small ready-assembled bot. Check the build diagrams and sort pieces together before starting, especially for a younger maker.
Five designs extend the kit’s use
Sillbird lists five different models from one kit. That choice adds replay value: a child can build one design, learn how its parts move and then take it apart for another configuration. The tradeoff is that switching builds means following the instructions and reassembling components. This suits a patient maker better than someone who expects five complete robots at once.
App and remote control keep the finished model approachable
The product page lists Bluetooth app control and a handheld remote. A physical remote offers a straightforward way to try the build, while app control and programming features give a more curious child another route to explore. Check supported phones and the current app before gifting. Programming can be a useful extension, but it does not guarantee a particular learning outcome.
Set expectations for age and assembly
Sillbird recommends the kit for ages 8 and up. The number of pieces means adult help may still be welcome for sorting, following diagrams and checking connections. Confirm battery requirements and keep small parts away from children who might mouth them. If the recipient prefers immediate play over a build, a ready-made robot will be a better match.
Our buying advice and the Sillbird code
We like the B905 as a project gift for a child who enjoys building and revising a model. The US product page currently lists it at $65.99. Sillbird’s partner program reports 5% off with code CURRENT, making $62.69 an estimate if that code applies to this kit and price. Eligibility and checkout are unverified, so confirm the final total before paying.
The details at a glance
| Kit | B905 building robot kit |
|---|---|
| Pieces | 773 |
| Build options | Five models, manufacturer listing |
| Recommended age | 8+ |
| Control | Bluetooth app or handheld remote |
| Programming | Supported through the app |
| Listed price region | US store |
Sillbird Building Robot Kit B905 · Builders aged 8+ who enjoy following a project, making several robot designs and choosing between app or remote control
Keep researching
Your questions, answered.
What does the Sillbird B905 kit include?
Sillbird lists 773 pieces and five possible builds. Check the current box contents and instructions on the official listing.
What age is the Sillbird B905 for?
Sillbird recommends the kit for ages 8 and up. Assembly difficulty and adult support depend on the builder.
Can the B905 be controlled by app and remote?
Yes. Sillbird lists Bluetooth app and handheld remote control. Check current app compatibility before buying.
Is the B905 ready to play out of the box?
It is a build-it-yourself kit. Assembly is a central part of the experience.
Does code CURRENT take 5% off the B905?
Sillbird’s partner program reports 5% off, but kit eligibility and checkout have not been verified. Confirm the code in the final cart.
How we put this review together
- Specifications checked against Sillbird’s official product information on October 16, 2026.
- Product photography comes from Sillbird, with only the background removed.
- No scores and no paid placement. Our recommendation is about fit, not commission.