Rainbow filament or specialty build plate: which upgrade actually earns its keep?

Display

Product A wins on pure visual impact because it is the thing that actually becomes the print. Creality Hyper Rainbow PLA is a long-gradient rainbow filament, so the finish changes colour over the length of the spool and can create striking multi-colour parts without a multi-material setup. At £25.99 for 1kg, you’re buying both material and the look. Product B, by contrast, affects the underside finish and bed surface of the print rather than the model itself. The rainbow confetti / galaxy PEY surface is fun and can add a patterned sheen, but it is still a build plate accessory, not the star of the show. Winner: Product A.

Performance

This is where the comparison gets a bit apples-to-oranges, but Product B edges it for practical printing performance. A build plate can directly influence adhesion, release, and first-layer consistency, and on a Bambu Lab A1 Mini that can make day-to-day printing smoother. The HIKUDIY plate is spring steel, which usually means easier part removal and a more convenient workflow. Product A’s “600mm/s” high-speed positioning is useful marketing, but filament speed claims only matter if your printer, hotend, cooling, and slicer settings can actually support them. For real-world reliability and ease of use, the build plate has the more immediate performance benefit. Winner: Product B.

Build quality and design

Product A’s strength is consistency: Creality claims dimensional accuracy of ±0.03 mm, which is a strong spec for PLA and suggests decent diameter control. That matters for feeding reliability, especially on faster printers. The long-gradient rainbow effect is also thoughtfully designed for larger decorative prints, where colour transitions have room to show off. Product B’s spring steel construction is the more durable, functional design choice. A steel plate is inherently more robust than a consumable filament spool, and the PEY/PEF surface is designed for repeatable bed use rather than being used up over time. If we’re talking physical product engineering, Product B has the sturdier, longer-lasting format. Winner: Product B.

Battery life

Neither product has a battery, so this category doesn’t meaningfully apply. If we translate the idea into “how much ongoing hassle do you save?”, Product B wins again because a good build plate can reduce failed first layers and repeated reprints, which saves time and material. Product A is a filament spool, so once you use it, it’s gone; the value is in the finished print, not in long-term workflow efficiency. Winner: Product B.

Price and value for money

Product B is cheaper at £15.97, versus £25.99 for Product A, a difference of £10.02. On price alone, the HIKUDIY build plate is the better bargain, especially since it is a reusable accessory rather than a consumable. But value depends on what you need: if you want a standout rainbow print, Product A gives you the material itself and the aesthetic payoff. If you want to improve your printing setup for a Bambu Lab A1 Mini, Product B is the smarter spend because it can keep paying you back print after print. For pure monetary efficiency, Product B wins. Winner: Product B.

Game library/features

Again, these are not gaming products, so the category doesn’t map directly. In practical maker terms, Product A’s “features” are its high-speed PLA profile, 1kg spool size, long gradient rainbow effect, and ±0.03 mm dimensional accuracy. That makes it attractive for decorative models, cosplay parts, display pieces, and anything where colour change is the feature. Product B’s feature set is all about print-bed behaviour: a 184x184 mm spring steel plate, PEF+PEY surface, and a rainbow confetti/galaxy aesthetic. It is more of a workflow upgrade than a creative material. If features mean versatility in the printing process, Product B has the edge because it improves how you print, not just what you print. Winner: Product B.

Overall user experience

Product A is the more exciting choice if you love filament experimentation and want your prints to look like they came off a much more expensive setup. It’s especially appealing for Ender 3 V3 Plus owners who want a premium-looking PLA with a strong reputation: 4.6/5 from 1,180 reviews is a solid trust signal. Product B is the more sensible day-to-day upgrade for a Bambu Lab A1 Mini owner because it directly affects adhesion, removal, and the convenience of printing. It also has a strong 4.5/5 rating from 298 reviews, and the lower price makes it an easier impulse buy. If you want the most satisfying overall ownership experience, the build plate is likely to improve more prints more often. Winner: Product B.

Overall summary: Product A is the better choice for visual wow-factor and decorative PLA printing, while Product B is the better all-round value and the more practical upgrade for regular printing. If you own a Bambu Lab A1 Mini and want a smarter purchase, choose the HIKUDIY build plate. If your priority is making eye-catching rainbow prints on a compatible high-speed printer, choose the Creality filament.