My glo Pro is fine. I want to be clear about that at the start, because I have read enough "versus" articles that start with the competitor being secretly broken, and the glo Pro is not secretly broken. It is a ceramic chamber device from British American Tobacco, it heats in ten seconds in BOOST mode, and it has survived three years of being dropped in a bag.
What made me look at the alternatives was not a complaint about it. It was that I started noticing how heavy it was.
98 g. That is the number that eventually did it for me. 98 g is not extreme in any absolute sense, but I carry a device in a work bag all day and I also carry a phone, a wallet and a set of keys, and at some point the glo Pro became the thing I noticed. The HEATX 1 is 48 g. Half the weight, and it disappeared into the bag in a way the glo Pro never did.
That is the whole reason this comparison exists, so I want to build it from there rather than from a spec sheet.
Glo and British American Tobacco figures come from their published specifications. HEATX figures come from our own product documentation.
The two ranges side by side
| Model | Weight | Size (mm) | Battery | Sticks per charge | Heating | Stick format | Screen |
|---|---|---|---|---|---|---|---|
| glo Pro | 98 g | 82 × 43 × 21 | 3000 mAh | About 20 | Ceramic chamber, about 280 °C | glo Neo only | None |
| Glo Hyper Pro | 150 g | 9.6 × 3.6 × 2.1 cm | 2580 mAh | Not published | Not published | glo Neo only | None |
| HEATX 1 (MRT0) | 48 g | 27 × 44 × 81 | 1350 mAh | 15 | 360° resistive | TEREA | Yes |
| HEATX 2 (GEN2.0) | 66 g | 34.8 × 20.6 × 92.5 | 1800 mAh | 20 | 360° resistive | TEREA | Yes |
| HEATX 3 | 100 g | 35 × 22 × 98 | 3200 mAh | 30 | GEN3.0 dual zone | TEREA | Yes |
| HEATX 5 (GEN 5.0) | 64 g | 30 × 21.5 × 89 | 2000 mAh | 20 | 360° resistive | TEREA | Yes |
| HEATX 6 (GEN 6.0) | 90 g | 30 × 21.5 × 105 | 2600 mAh | 20 | 360° + airflow | HEETS | Yes |
Notice the weight row. 48, 66, 64, 90, 100. The glo Pro at 98 g is heavier than four of the five HEATX models. The Glo Hyper Pro at 150 g is heavier than all of them, and it also has a smaller battery than the glo Pro, which is the sort of thing that tells you these figures are not standardised across the category.
The Glo Hyper Pro deserves a sentence of its own because it is the one people assume is the upgrade. It is the heavier one, with the smaller battery, and British American Tobacco has not published its heating method, its session length or its stick count per charge. I am leaving those cells empty rather than guessing, and that emptiness is itself informative when you are trying to compare.
Ceramic chamber against a wrapped element
The glo Pro heats a ceramic chamber to around 280 °C. The stick sits inside the heated cavity, the walls heat up, and the heat arrives at the tobacco from every side, because the tobacco is surrounded by hot ceramic. It is a well-proven arrangement and it is the reason the device can offer a ten second BOOST preheat.
The HEATX 1, 2, 5 and GEN2.0 use a 360° circumferential resistive element that wraps around the outside of the stick and heats inward. The HEATX 3 adds a bottom heating zone for a dual zone system. The HEATX 6 adds airflow heating on top, so the stick is heated from the inside out by moving air.
Here is the part that matters in daily use rather than on paper. Because the element wraps the stick, a stick that has already been heated once can go back in for a second pass. You do not rotate it, you do not pull it out and re-seat it at a different angle. You insert it and it starts.
The glo Pro has no such option. A glo Neo stick goes in, it is heated, and at the end of the session it is done. The tobacco in the far end of that stick never got properly heated and it goes in the bin. That is the format the glo ecosystem was built around and I am not presenting it as a flaw, because a short, complete, predictable session is a legitimate design. But if you have ever looked at a used glo stick and thought about what is still in there, you already understand the difference.
The stick situation, which is the real decision
The glo Pro runs on glo Neo sticks. Only glo Neo sticks. They are widely available and well stocked, and in that respect the ecosystem is not a problem at all.
But it is a closed door. If you move to a HEATX device, you are working with TEREA format sticks, which is what most of the rest of the heated tobacco category uses. That is a genuine shift: you are leaving a system with absolute supply certainty for one that is more open and, arguably, more widely stocked in some markets and less so in others.
If your sticks are HEETS, then only the HEATX 6 works for you, and the glo Pro is irrelevant to that decision anyway.
What the glo Pro genuinely does better
I am not going to pretend the glo Pro is a worse device. It wins on three things.
Preheat speed. Ten seconds in BOOST, twenty in standard. The HEATX range sits at 20 to 30 seconds depending on model. On a cold start with people waiting, that is a real difference.
Endurance. 3000 mAh and about 20 sticks per charge. The HEATX 3 beats it at 30 sticks, but the glo Pro beats the HEATX 1's 15 and matches the HEATX 2, 5 and 6 at 20. If you charge once and then go three days without a socket, this is the argument.
Simplicity. One button, vibration feedback, no screen, no app, no modes. There is genuinely nothing to learn. The HEATX 3, with its four temperature modes and double-press switching, asks more of you than the glo Pro does.
Where the glo Pro falls short for me
The weight, which we have already covered at length.
The absence of a screen. The glo Pro has no display at all. The HEATX 1 shows battery level, heating progress, active mode and puff count in real time, which sounds like a minor thing until you have used one. The HEATX 2 and 3 show a live puff count, and on the HEATX 3 that count is split so you can see whether you are on the first pass or the second.
And the single-use stick, which is not a flaw so much as a ceiling.
What I would buy
If you want the fastest start, the simplest operation and the biggest battery in the comparison, and if you are happy inside the glo Neo ecosystem, the glo Pro is a good device and I would not talk you out of it. The Glo Hyper Pro, meanwhile, is heavier with a smaller battery, so I would not upgrade to it on the assumption that it is better.
If you want something noticeably lighter, if you want a screen that tells you what is happening, if you want to get a second session out of each stick, or if you want to be working with the stick format most of the category uses, then the HEATX range is the better fit. The HEATX 1 at 48 g is the lightest thing in this table by a wide margin, the HEATX 5 at 64 g gives you a metal shell and a single button, the HEATX 2 at 66 g is the flattest, the HEATX 3 at 100 g is the endurance and control option, and the HEATX 6 is the one for HEETS sticks and hybrid heating.
Every model and full specifications are on chillmistvape.com.
Health, law and where to buy
Heated tobacco is not harmless. Avoiding combustion reduces exposure to a number of the toxicants in cigarette smoke, but it still delivers nicotine, and nicotine is addictive. Nothing in this article is medical advice and nothing here claims that any device is safe.
If you do not already use tobacco or nicotine, there is no reason to start. Age limits and tax rules differ by country and change, so check where you live. Buy from licensed sellers only. The glo and British American Tobacco figures used here come from the manufacturer's published specifications; the HEATX figures come from our own product documentation. Compare the numbers, then decide which device fits how you actually use a heated tobacco device.