Rainbow filament or fast printer? The smarter buy depends on your setup
These two products are not direct substitutes, but they do sit in the same decision path for many makers: do you spend a little on premium filament for an existing printer, or put the budget toward a fast new machine? Product A is a specialty Creality PLA filament, while Product B is a full FLASHFORGE 3D printer. That means the real question is whether you need material or hardware. If you already own a decent printer, the answer is very different from someone starting from scratch.

Creality Hyper Rainbow PLA Filament for Ender 3 V3 Plus, 3D Printer Filament Designed for High Speed 600mm/s, 1kg(2.2lbs)/Spool Gradient Rainbow PLA, Dimensional Accuracy ± 0.03 mm (Long Gradient)

FLASHFORGE Adventurer 5M 3D Printer: 600mm/s High-Speed, Auto Bed Levelling, Quick-Change Nozzle, 220x220x220mm PEI Build Plate for Rapid Prototyping & Makers
Our Recommendation
Product B is the definitive recommendation because it is a complete 3D printer with high-speed capability, auto bed levelling, a quick-change nozzle, and a PEI build plate. Product A is excellent filament, but it only makes sense if you already own a printer. At £209.00, the Adventurer 5M gives you the actual means to make parts, which is far more useful for most buyers than a decorative spool.
Detailed Comparison
Display
There is no display comparison here in the usual sense, because Product A is filament and Product B is a printer. If we translate this into the practical equivalent for makers, Product B wins on usability because it includes the machine, controls, and workflow needed to actually make parts. The Adventurer 5M’s onboard interface and printer-side controls are part of the value, while the Creality filament has no interface at all. Winner: Product B, because it delivers a complete user-facing experience rather than just consumable material.
Performance
On raw performance, Product B wins by a mile because it is the thing that does the printing. The FLASHFORGE Adventurer 5M is rated for 600mm/s high-speed printing, has auto bed levelling, and a quick-change nozzle, all of which directly affect print speed, setup time, and reliability. Product A is also marketed for high-speed use up to 600mm/s, but that only means it is formulated to keep up with fast printers; it cannot produce anything by itself. The filament’s dimensional accuracy of ±0.03 mm is excellent for consistent feeding and extrusion, especially on high-speed machines, but the printer still determines the final performance. Winner: Product B, because it is the performance platform.
Build quality and design
Product B again takes the lead because printer build quality matters far more than filament packaging. The Adventurer 5M includes a 220x220x220mm build volume, PEI build plate, auto bed levelling, and a quick-change nozzle system, which are all signs of a modern, maker-friendly design. Those features reduce hassle and improve first-layer success, especially for users who want reliable rapid prototyping. Product A’s design strengths are in the spool itself: long-gradient rainbow colour transitions and tight dimensional tolerance. That said, filament design is inherently limited compared with a full machine. Winner: Product B, because its hardware design has a bigger impact on everyday results.
Battery life
Neither product has a battery, so there is no meaningful battery-life comparison. For a printer purchase, the more relevant issue is uptime and reliability, and that is where Product B’s auto bed levelling and quick-change nozzle help reduce failed starts and maintenance downtime. Product A has no equivalent operational metric beyond being a well-made consumable. Winner: Product B by default, because it is the only product here with real operational longevity features.
Price and value for money
This is where Product A absolutely dominates. At £22.09, the Creality Hyper Rainbow PLA is affordable, has a strong 4.6/5 rating from 1326 reviews, and gives you a premium-looking finish for a relatively small outlay. Product B costs £209.00, which is £186.91 more, but it is also a complete 3D printer with a 4.3/5 rating from 327 reviews. In pure value terms, Product A is the better buy if you already own a printer and want to improve the look of your prints without spending much. Product B is better value only if you need a printer in the first place, because no amount of filament can replace missing hardware. Winner: Product A for value per pound, Product B for value as a complete tool.
Game library/features
Neither product has a game library, so there is no direct comparison here. If we interpret this as feature set, Product B wins easily: 600mm/s high-speed printing, auto bed levelling, quick-change nozzle, PEI build plate, and a 220x220x220mm build area make it a feature-rich machine. Product A’s standout feature is the long-gradient rainbow effect, plus high-speed compatibility and ±0.03 mm dimensional accuracy. That is useful, but it is still only one material with one job. Winner: Product B, because it offers a far broader feature set.
Overall user experience
For ease of use, Product B is the more transformative purchase. The Adventurer 5M is aimed at rapid prototyping and makers who want to spend less time fiddling and more time printing, and the auto levelling plus quick-change nozzle are exactly the sort of features that make a printer feel modern. Product A is delightful if you want eye-catching rainbow finishes and you already have a machine that can handle PLA well, but it will not improve your workflow on its own. Its main appeal is aesthetic: long gradient transitions can make decorative models look much more expensive than they are. Winner: Product B for a complete experience, Product A for a specialised visual upgrade.
Overall summary: if you are choosing one item to buy and you do not already own a capable printer, the FLASHFORGE Adventurer 5M is the clear winner because it is the only product that actually lets you print. If you already have a printer, the Creality Hyper Rainbow PLA is the better-value purchase for adding colour and style at a very low cost. So the best choice depends on whether you need the engine or the fuel, but as a standalone purchase for most people, Product B is the definitive buy.
Buy the Creality Hyper Rainbow if...
Buy Product A if you already own a reliable 3D printer and want a premium-looking rainbow PLA for display models, cosplay parts, or gifts. It is also the better choice if you want to spend as little as possible while still getting a highly rated consumable with tight ±0.03 mm dimensional accuracy.
Buy the FLASHFORGE Adventurer 5M if...
Buy Product B if you do not yet have a printer, or if your current machine is slow, fussy, or constantly needs bed-levelling tweaks. It is also the better pick if you want a faster, more hands-off setup for rapid prototyping and everyday maker projects.
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