VaporShark DNA200 vs Wismec Reuleaux RX200 TC

There are more and more powerful mods with expensive dna200 chip on the one hand and a budget ones on the others. Is it worth to pay 3-5 times more for dna200 mods? Let's have a look at VaporShark DNA200 for around 200$ vs Wismec Reuleaux RX200 for around 40$...

1. The FINISH.

It's just PERFECT in both mods. The Wismec is made out of stainless steel and lies well in the hand. The battery flap is hold on solid magnets and there is no way to move it during regular use. The VaporShark is made out of aluminum, but then is more complex: finish starts with a black anodization process, followed by black paint and then a light rubberized coating completes the finish. And ... IT WORKS! The coat is quite difficult to scratch (even at the 510 head) and is very pleasant to the touch. Anyway, in both mods everything is very well fitted, including buttons - they are well-fixed.

510 socket without complaint in both cases:

With spring loaded center pin all the atomizers I used worked with no problems.

If we look at the Wismec display:

we can see:
* battery status,
* power,
* coil resistance,
* temperature setting,
* type of wire.

In VaporShark the display is at the bottom of mod and at first sight it looks typical for Evolv chip:

but IT IS CUSTOMIZABLE in dedicated Escribe software - so we have a lot of parameters to show:

 
Wow!

Both mods are ergonomic when in use, the Wismec even better (it perfectly lies in the hand) BUT the Wismec has one disadvantage: the WEIGHT - around 300g with battery installed (no atomizer), so it is definitely NOT for outside. The VaporShark weighs around 170g.

The comparison with other mods:

2. FEATURES.

- power: 200W,
- resistance range for VW mode: 0.1-3.5 ohm / 0.03-3 ohm(*),
- resistance range for TC mode: 0.05-1.0 ohm / 0.03-3 ohm(*),
- temperature range: 100-300*C (200-600 F),
- battery: 3x18650 / 3S LiPo 10 Wh,
- size: 50x40x84 mm / 48x24x89 mm.
* - according to the manual dna200 starts from 0.01 ohm but I do not recommend it.

The VaporShark is powered by 11V | 900mAh | 10Wh LiPo battery with quite easy access to replace:

 under the flap with magnet and latch.

In Wismec we have 3x18650 battery bay with spring loaded negative pins:

Polarity is clearly identified and battery exchange is quick and quite easy. 

You may easily guess that difference in battery operation time will be HUGE between these mods (more on that later).

Both mods have microUSB slot for battery charging and firmware update. Additionally the VaporShark is FULLY CUSTOMIZABLE by use of Escribe software - and it is significant advantage over every other mods (not only rx200). At this moment there is absolutely no competition for Escribe.

NOTE - I do not recommend using the internal battery charger in Wismec (more on that later).


3. VOLTAGE SHAPE and EFFICIENCY.

Measurements were carried out by use of real atomizer with coil resistance 0.26-0.33 ohm:

Velocity with dual AWG22 coils.

And the results:

We can see several things:
1. Voltage of the dna200 is ROCK STABLE. It is nothing unusual - it is DNA :-)

2. RX voltage flows a little - if we expand the timebase:

we will see slow oscillations with around 0.5V amplitude - of course it is nothing terrible and unnoticeable during vaping.

3. With dna200 we get exactly what we set up to 70W - the differences in wattage are below 1%. Then the differences get bigger - up to 8%. But it is still VERY GOOD - remember: at 200W we get around 30A in coils.

4. RX has a bigger differences between set and obtained wattage - could reach even 15%. Of course having so much power we can easy compensate it (setting a higher wattage) but it is worth to keep in mind.


4. TEMPERATURE CONTROL

Setup was made as regular coil with Ni200 wire, ~0.1 ohm, 30W and 250*C, the oscilloscope was set for longer acquisition time and go...

 

As we can see for the Dna200 temperature control is ABSOLUTELY PERFECT. After the preheat pulse (setting in the Escribe software) we get very smooth regulation with no modulation and oscillations - there is only one mod with such good regulation: Dicodes.
TC for RX200 looks worse but not so bad, especially when the wick is wet. Only when wick is almost dry the strong modulation appears.