The Pulsar RoK and the Dr. Dabber Boost Evo sit at almost the exact same price point. $149.99 vs $154.00. Four dollars apart. Both are portable e-rigs with water filtration, both run on rechargeable batteries, and both promise desktop-quality dabs in a portable package.
So which one actually delivers?
The RoK is the older device here, originally released around mid-2019 according to retailer listings. The Boost Evo launched in November 2020 per Dr. Dabber's official blog. That 18-month gap shows in the tech: the Evo has USB-C and pass-through charging, while the RoK is stuck on Micro-USB.
After testing both side by side, one of these is clearly the better buy. Here's the full breakdown.
Build and Design
The RoK stands 6.75 inches tall with a chunky, rocket-shaped body and a large glass bubbler on top. It ships with both a quartz and ceramic atomizer, plus an herb carb cap for dry herb use. The glass piece is bigger than the Evo's, which does help with cooling. But the build quality feels budget. The glass is thin, the base is mostly plastic, and the Micro-USB charging port feels dated.
The Boost Evo is slightly taller at 7.75 inches but feels more refined. The matte finish, magnetic Quick Connect glass attachment, and integrated carb button all point to better engineering. You can pull the glass off with one hand, which makes cleaning and travel much easier. It also comes with a hard carrying case, something the RoK doesn't include.
Build quality goes to the Evo without much debate. It feels like a $150 device. The RoK feels like a $75 device with a $150 price tag.
Temperature Control
This is where the gap starts to widen.
The RoK gives you 3 voltage-based settings: 3.4V (roughly 680F), 3.6V (roughly 750F), and 3.8V (roughly 850F). That's it. The lowest setting already runs hot enough to scorch terpenes, and there's no way to dial it down. If you prefer low-temp dabs for flavor, the RoK simply can't do them.
The Boost Evo offers 6 temperature presets ranging from 500F to 750F. The 500F setting gives you actual low-temp flavor hits, while the higher settings can produce thick clouds when you want them. That range covers far more use cases and lets you adjust based on what concentrate you're working with.
| Feature | Pulsar RoK | Dr. Dabber Boost Evo |
|---|---|---|
| Settings | 3 | 6 |
| Temp Range | ~680-850F | 500-750F |
| Lowest Setting | ~680F | 500F |
| Highest Setting | ~850F | 750F |
| Control Type | Voltage-based | Temperature-based |
The Evo's temperature range is both wider and starts lower, which is exactly what you want for concentrate flavor. Winner: Boost Evo, and it's not close.
Vapor Quality
The Boost Evo uses a quartz-to-glass vapor path with no silicone in the airway. Your vapor touches quartz, then glass, then your lungs. That's it. The result is clean, accurate flavor at every temp setting.
The RoK uses a disc percolator in its glass piece, and the larger chamber does cool the vapor well. Credit where it's due: the water filtration on the RoK is solid. But the overall vapor path involves more components and materials, and flavor clarity just doesn't match the Evo's cleaner design.
The RoK does have one trick worth mentioning. RoK Mode heats the atomizer for 30 continuous seconds, which is great for group sessions. You load it up, hit the button, and pass it around without anyone needing to re-fire. For social use, that's genuinely useful.
For solo sessions focused on flavor, the Evo wins. For passing around at a party, the RoK's 30-second mode has its place.
Battery Life
This comparison isn't fair, but we have to make it anyway.
Dr. Dabber rates the Boost Evo at roughly 60 heating cycles per charge, and that number holds up in real-world use. You can go days between charges with moderate use. It charges via USB-C and supports pass-through charging, meaning you can dab while plugged in. If you're at home and the battery dies, it's a non-issue.
Pulsar advertises 25-30 cycles for the RoK's 1600mAh battery. In practice, expect closer to 10-15 sessions before you need to charge. And when you do, you're stuck with Micro-USB and no pass-through option. The battery dies, you wait.
The Evo's battery life is roughly 4x what you'll get from the RoK in real use. That alone could justify the $4 price difference.
Full Spec Comparison
| Spec | Pulsar RoK | Dr. Dabber Boost Evo |
|---|---|---|
| Price | $149.99 | $154.00 |
| Battery | 1600mAh | ~60 cycles per charge |
| Temp Settings | 3 | 6 |
| Temp Range | ~680-850F | 500-750F |
| Heat-up Time | ~15-20 seconds | 9-12 seconds |
| Charging | Micro-USB | USB-C (pass-through) |
| Height | 6.75" | 7.75" |
| Atomizer | Quartz V2 / Ceramic (both included) | Quartz (Sapphire upgrade $90) |
| Material Use | Concentrates + Dry Herb | Concentrates only |
| Percolation | Disc percolator | Water filtration |
| Glass Attachment | Fixed | Quick Connect magnetic |
| Carrying Case | No | Yes |
| Warranty | 1 year | 1 year |
Cleaning and Maintenance
The Boost Evo's Quick Connect magnetic glass pulls off in a second. Soak it in iso, wipe the quartz atomizer, and you're done. The whole process takes a few minutes and requires no tools.
The RoK has more parts to deal with. The glass piece sits in the base and is harder to remove without worry. The disc percolator can trap residue, and the atomizer chamber has more crevices to clean. It's not terrible, but you'll spend more time on maintenance.
Long-term part costs differ too. RoK atomizers run $15-25, while Evo quartz atomizers cost $35-50. The Evo's parts are pricier, but they tend to last longer with proper care. If you want to upgrade the Evo, the Sapphire atomizer ($90) is a real improvement in flavor and durability.
One concern with the Evo: the battery isn't user-replaceable. After 2-3 years of heavy use, battery degradation could become an issue. The RoK has the same limitation, so neither device wins here.
Who Should Get the RoK?
The RoK makes sense in a few specific situations:
- You want dual-use capability. The RoK technically handles dry herb with its herb carb cap. "Technically" is doing heavy lifting in that sentence (the dry herb experience is pretty bad), but it exists.
- You value bigger glass. The RoK's larger bubbler does produce smoother, cooler hits through its disc percolator.
- Group sessions are your thing. RoK Mode's 30-second continuous heat is genuinely useful when passing an e-rig around a circle.
- You find it on clearance. The RoK appears to be discontinued from Pulsar's official store. If you spot it for $80-100, the value equation changes.
Check our full RoK review for more detail.
Who Should Get the Boost Evo?
The Boost Evo is the right pick for most people:
- You care about flavor. The quartz-to-glass vapor path and 500F low setting produce clean, terpy hits the RoK can't match.
- Battery life matters. 60 cycles vs 10-15 real-world cycles. Not even comparable.
- You want something portable. The included carrying case, magnetic glass, and USB-C charging make the Evo genuinely travel-friendly.
- You prefer simple maintenance. Quick Connect glass comes off fast, and the quartz atomizer cleans up easily.
- You want an upgrade path. The Sapphire atomizer gives you room to improve the experience down the road.
Read our full Boost Evo review for the deep breakdown. And if you're considering something bigger from Dr. Dabber, the Switch 2 is their desktop option worth looking at.
The Bottom Line
At $149.99 vs $154.00, the price difference between these two is almost nothing. But the performance gap is significant.
The Boost Evo beats the RoK in battery life (60 vs ~15 real cycles), temperature control (6 settings vs 3), charging (USB-C vs Micro-USB), vapor path purity, heat-up speed, and accessories. The RoK's advantages are limited to its bigger glass, 30-second RoK Mode, and the dry herb option that barely works.
If you're shopping for a portable e-rig around $150, spend the extra $4. The Boost Evo is the better device by a comfortable margin. It earned its spot on our best e-rigs list for good reason. And if your budget is tighter, consider a wax pen as a more affordable entry point into concentrates.