A note before we start: my Go SRT review is a Week-1-of-6 first-impressions piece, and its 8.6 is provisional. One week of daily use is enough to compare vapour, heat-up and portability honestly — it is not enough to judge long-term reliability, battery degradation or magnet wear. The full Go SRT update lands late September 2026, and if anything in this comparison changes with it, I'll update this article too. The Solo 3 v2 side is built on eight months of daily use. Keep that asymmetry in mind throughout.
30-Second Verdict
The Solo 3 v2 wins overall — 9.2 against a provisional 8.6 — and the honest one-line truth is that this is the least useful "winner" I've ever declared, because the two devices barely compete for the same hours of your day. One pound and a penny separates them. Where you live your life is the entire decision.
- Solo 3 v2: 9.2/10
- Go SRT: 8.6/10 (provisional, week 1 of 6)
Buy the Solo 3 v2 if:
- Most of your sessions happen at home, at a desk, or in a garden
- You want the best flavour Arizer makes in a portable, plus on-demand mode
- Battery life per charge matters more to you than battery replaceability
- You'd rather have a bigger oven and longer sessions than a smaller footprint
Buy the Go SRT if:
- You mostly vape outside the house — restaurants, cinemas, mates' places
- You want the glass path in something that survives a handbag or jeans pocket
- A replaceable 21700 cell matters to you long-term
- You want the complete kit in the box: WPA, Go Shells, travel case
Quick Specs Face-Off:
| Go SRT | Solo 3 v2 | |
|---|---|---|
| Heat-up | 5–15s | ~20s session / ~15s on-demand |
| Battery | Replaceable 21700 (tools, not field swap); 10–14 bowls | Sealed; 12–15 bowls |
| Bowl | ~0.2g Go Shell / 0.15–0.2g tube | 0.1–0.15g stem / 0.2–0.25g XL pod |
| Weight | 237g | 280g |
| Warranty | Lifetime heater, 2yr device, 1yr battery | Lifetime heater, 2yr device, 1yr battery, glass not covered |
| Price | Check current price | Check current price |
The Hook: The Daysack and the Expedition Pack
Anyone who's spent time in an outdoors shop knows the conversation. You go in for "a rucksack" and a bloke called Gareth in a fleece explains that there is no such thing as a rucksack. There is the 65-litre expedition pack — the one with the internal frame and the hip belt and enough capacity to keep you alive on a hill for a week. And there is the 22-litre daysack — the one that actually goes to work with you every single day, because the big one, magnificent as it is, does not fit under a train seat.
Same brand. Same fabric. Same zips, frequently. Two completely different lives.
The Solo 3 v2 is the expedition pack. The Go SRT is the daysack. And Arizer, in an act of pricing that I can only assume was somebody's idea of a joke, has put one pound and one penny between them.
The Solo 3 v2 and the Go SRT sit at near enough the same price. I've checked this several times, partly out of professional diligence and partly out of disbelief. The small one is the dear one. By a quid. Miniaturisation costs money, Gareth would tell you — but it does mean this is the rare head-to-head where price genuinely cannot be the tiebreaker. A pound won't decide anything. Your front door will.
I called the Solo 3 v2 "Joy Division becoming New Order" in its review; the Go SRT was the M&S Dine In. Both hold. But side by side on the kitchen counter, the framing that matters is capacity versus carry: same glass kitchen, same hybrid heater philosophy, same lifetime-heater warranty, packed for two different journeys.
We stock both at HerbVape.co.uk — details and pricing below.
Vapour Quality
Solo 3 v2: 9.5/10. Go SRT: 9/10. The Solo 3 v2 wins, and both reviews already told you why.
They share DNA in the most literal sense — the Go SRT runs the 75/25 hybrid heater refined down from the Solo 3, in a body 30% smaller, with the same all-borosilicate path. The Solo 3 v2 runs its hybrid at roughly 80/20 with more thermal mass, more airflow and more oven behind it.
The half-point gap is entirely a size gap. There's just more device in the Solo 3 v2 — its standard stem takes 0.1–0.15g and stretches a session across fourteen-odd legible draws; the Go SRT's ~0.2g shells and tubes give you focused, efficient extraction where draws one to four are exceptional and draw five onwards depends on your pacing. Draw for draw, in the first half of a bowl, I'd struggle to split them blind. Across a full session, the expedition pack simply carries more.
The Go SRT's shells add something the Solo 3 doesn't have: a tighter, more concentrated draw that suits dense flower and water-pipe use. The Solo 3's on-demand mode adds something the Go SRT doesn't have in the same form: press, two draws, back to work, fifteen seconds flat.
Winner: Solo 3 v2 — but it's the closest half-point on the site.
The Strain Test, Side by Side
Same two jars, same grinder, same running order — the strain is the control, so for once the comparison is genuinely like-for-like. Worth noting the ladders differ: I ran the Solo 3 v2 at 175/185/200°C and the Go SRT at 180/190/200°C, so read the stages, not the exact degrees.
Jack Herer
This is the strain that decides the comparison, because Jack punishes small ovens and rewards patient ones.
On the Solo 3 v2 (0.13g, standard stem), the low stage gives five draws of intact pine and lemon peel, and the mid stage is where the 5°C steps earn their money — the citrus lift doesn't die on contact with the black pepper, it thins out over the next three draws rather than vanishing. Fourteen draws all told, and I called it the best Jack Herer I get from anything that doesn't plug into a wall. Not the loudest — the most legible.
On the Go SRT (0.2g, glass aroma tube), the same top notes arrive just as intact on draw one — pine needles, lemon peel, that cooling menthol edge, nothing added by the path. But by draw three of the low stage the lift thins, and by the third draw of the mid stage the pine is a memory rather than a flavour. Eight draws, eleven minutes, and my review's honest summary stands: the Go SRT renders Jack accurately for about half the session and then runs out of road.
Side by side, that's the whole comparison in miniature: identical fidelity, different duration. Neither device muddies a single note — the difference is that the Solo 3 v2 stretches Jack's fragile arc across a long afternoon walk and the Go SRT gives you the summit view and then wants you back at the car. If Jack — or anything terpinolene-fragile — is your daily flower and you're mostly at home, this section alone should send you to the Solo 3 v2.
Wedding Cake
The gap nearly closes. On the Solo 3 v2 (0.12g), resolution is the party trick — vanilla, butter, dough and pepper arrive as four nameable things across three stages, with the ABV coming out an even golden-brown top to bottom. On the Go SRT (0.2g in a Go Shell), the dense dessert profile actively suits the small chamber: the shell's tighter draw concentrates the vapour, the glass separates the dairy from the dough instead of handing you one sweet blur, and my review's verdict was that the strain "fills the plate" where Jack ran short.
One fresh observation that follows from both write-ups: Wedding Cake is the strain where the daysack carries as much as the expedition pack. A heavy, oil-rich profile doesn't need the Solo 3's duration to tell its whole story — 0.2g in a shell gets you the complete vanilla-to-burnt-sugar arc. Jack needs the room; Cake doesn't.
The flavour-device call: both are flavour devices, unambiguously — at 200°C the two strains still read as two different plants on both machines. The Solo 3 v2 is the better flavour device across a session; the Go SRT is its equal per draw. That's a family resemblance, not a tie.
Design & Build
Solo 3 v2: 9/10. Go SRT: 8.5/10 — but this is one of those categories where the numbers flatter the wrong sort of comparison.
The Solo 3 v2 is chunky Arizer solidity: 130 × 49 × 32mm, 280g, aluminium alloy, and my Sea of Green unit has survived eight months of daily use and multiple tumbles with no rattles and no error codes. The v1's Error 5 era is behind it — Tom's replacement unit has been rock solid, which for a man with his electronics luck is practically a QC certification.
The Go SRT is 110mm × ~32mm and 237g of anodised aluminium with the same engineered-not-styled feel — and one genuinely new idea: the magnetic On-The-Go Cap that seals the glass path inside the body. That cap is the single change that moved Arizer portables from "jacket pocket, carefully" to "handbag, without thinking." The Solo 3 v2 has no answer to it; its stems ride exposed, and mine travel in a Ryman's pencil case like the fragile cargo they are.
Caveat, honestly flagged: the Solo 3's build score reflects eight months of evidence. The Go SRT's reflects one week, and magnet wear over hundreds of cycles is exactly the sort of thing the 6-week update exists to check.
Winner: Solo 3 v2 on proven durability; Go SRT on design intelligence. Score says Solo. I say wait for September before calling it final.
Battery & Charging
Solo 3 v2: 9/10. Go SRT: 8.5/10 — and this is the philosophical split hiding inside a family resemblance.
Per charge, the Solo 3 v2 wins: 12–15 bowls at my usual temps against the Go SRT's 10–14, with the same USB-C PD story on both (roughly 90 minutes to full on a proper PD brick in my testing, both supporting pass-through — both quietly excellent desk companions).
But the Solo 3 v2's battery is sealed. When the pack eventually degrades, the whole unit goes back to Arizer. The Go SRT's 21700 is replaceable with basic tools — a screwdriver-and-kitchen-table job, not a festival field swap, but it means the device's lifespan isn't the battery's lifespan. Amit's three sealed-battery casualties across two continents — physics, not luck — argue for the Go SRT here. Fine print applies in both directions: the Go SRT's cell numbers are new-battery, week-one numbers.
Winner: Solo 3 v2 today, Go SRT over five years. Pick your timescale.
Ease of Use
Solo 3 v2: 8.5/10. Go SRT: 8/10. Both have learning curves; they're different curves.
The Solo 3 v2's is on-demand technique: overpack and the first press browns the top layer. Pack loose, leave 2–3mm headroom, and it's solved in a week. The v2 software is otherwise the best interface Arizer has shipped — lock screen disabled, presets customisable, done.
The Go SRT's curve is conceptual: the V-Scale system (Gentle, Balanced, Intense, Extreme) replaces dial-a-degree with volatilisation profiles. Smarter, genuinely — and more to learn. By day three you've customised two presets and ignored the other two. Add the Go Shell screen that doesn't lock in place and there's slightly more friction here in week one.
Could Mum use them? Solo 3 v2 session mode, probably; on-demand needs the five-minute tutorial. Go SRT on Gentle, yes — single button press.
Winner: Solo 3 v2, narrowly, on a more mature interface.
Cleaning & Maintenance
Solo 3 v2: 9.5/10. Go SRT: 9/10. This is Arizer versus Arizer, which means it's a competition to see who can be more trivially easy.
Both keep the oven pristine because the herb sits in glass (or shell), not against the element. Both are ISO-soak-the-removables-and-done. The Solo 3 v2 edges it because glass stems are the entire consumables story (a cheap two-pack when one meets a tile); the Go SRT adds shell screens that warp over enough heat cycles — a small annual running cost for daily users. Either way, compare it to the Mighty+ cooling-unit teardown — eight O-rings, tight corners — and both of these are a forty-second job.
Winner: Solo 3 v2, by a screen's width.
Portability
Go SRT: 9/10. Solo 3 v2: 7/10. The rout, and the reason both devices exist.
The Solo 3 v2 is an "around the house" portable and its own review stopped pretending otherwise: jacket pocket with intent, bag without issue, skinny jeans never. The Go SRT is smaller in every dimension, 43g lighter, and — the decisive bit — sealed. Cap on, it's an aluminium cylinder with no exposed glass. Handbag next to a phone, jeans if your jeans have the real estate, cinema, trains, nobody's noticed yet.
The handbag test is canon now: day five, dinner in Chorlton, Sarah looked at three vapes on the counter, took the Go SRT, and said "right, this one actually comes with me." She has never said that about the Solo 3 v2. She never will.
Winner: Go SRT, and it isn't close.
Value for Money
Solo 3 v2: 9/10. Go SRT: 8/10 — and here's where the identical price tag stops being a joke and becomes the actual question.
The Solo 3 v2 is two vapes in one body — the best value-per-quality ratio I've found in the £200–300 portable bracket. The Go SRT, for the same money, buys you the complete kit — WPA, shells, travel case, grip, glass stem, all in the box — plus the replaceable cell and the only genuine pocketability in the range.
So the pound buys you nothing, and the choice buys you everything. If your vape lives on a desk, the Solo 3 v2 is objectively more device for functionally the same money. If your vape lives in a bag, the Solo 3 v2's extra performance is performance you'll never use. A 65-litre pack is terrible value if you only ever commute.
Winner: Solo 3 v2 on paper. The right buyer flips it.
Score Comparison
| Category | Go SRT | Solo 3 v2 |
|---|---|---|
| Vapour Quality | 9/10 | 9.5/10 |
| Design & Build | 8.5/10 | 9/10 |
| Battery & Charging | 8.5/10 | 9/10 |
| Ease of Use | 8/10 | 8.5/10 |
| Cleaning & Maintenance | 9/10 | 9.5/10 |
| Portability | 9/10 | 7/10 |
| Value for Money | 8/10 | 9/10 |
| Overall | 8.6/10 (provisional) | 9.2/10 |
The Solo 3 v2 wins six categories out of seven. The Go SRT's one win is the one the Solo 3 v2 cannot answer at any price.
Who Should Buy Which
If you're a home-first user — desk sessions, evening sessions, garden with the occasional jacket-pocket outing — buy the Solo 3 v2 and don't look back. It's the higher score for real reasons: more flavour across a session, more battery per charge, on-demand mode for the ADHD-brain quick hit between tasks, and eight months of proven reliability where the Go SRT has one week. It's also, absurdly, the cheaper device. By a pound and a penny. Frame the receipt.
If you're an out-the-door user — restaurants, cinemas, mates' places, anywhere a vape needs to disappear into a bag and come back out working — buy the Go SRT and accept that you're paying the extra quid for the privilege of less device, because less device is precisely the point. The magnetic cap, the pre-packed shells, the fifteen-second heat-up in a corridor: that's a toolkit the Solo 3 v2 doesn't carry.
If you're trying to buy one Arizer to do both jobs: the Solo 3 v2 covers 100% of home and maybe 60% of out; the Go SRT covers 100% of out and maybe 85% of home. Read your own week and count the hours.
How I Actually Choose
Both live in my house, so this isn't hypothetical.
The Solo 3 v2 is my daily driver — roughly 35% of my total usage, parked on the desk, session mode at 185°C stepping to 195°C, on-demand between work tasks, the Sea of Green unit that broke my kettle ritual because it was ready before I'd found a mug. Eight months of that hasn't changed.
The Go SRT — one week in, provisionally — is what leaves the house with me for anything over two hours. Shells pre-packed Sunday night, travel case in the jacket, Balanced preset at 192°C. It's already replaced the ArGo entirely for the going-out job, and it's Sarah's pick when we're heading into Chorlton.
Sarah's contribution to this comparison, on being told the small one costs a pound more than the big one: "You paid extra for less vape? That's very you." I explained about miniaturisation. She'd already left the room.
The honest answer: the Solo 3 v2 has not been replaced as the best device on my desk, and the Go SRT was never trying to sit there. One pack for the hill, one for the commute.
The Verdict (The Bookend)
Gareth in the fleece was right: there's no such thing as a rucksack. There's the pack you live out of and the pack you move through the day with, and buying the wrong one for your actual life is the only mistake available here — because at the same price, price has politely excused itself from the conversation.
The Solo 3 v2 is the better vaporiser. The Go SRT is the better companion. The matching price tags are Arizer telling you, in the driest possible Canadian, that this was never about money.
Home: Solo 3 v2, 9.2, no hesitation. Out: Go SRT, 8.6 provisional — with the honest asterisk that the daysack has only done one week on the trail, and I'll re-walk this whole comparison in the late-September update if it needs it.
FAQ
Go SRT vs Solo 3 v2 — which should I buy?
Home-first: Solo 3 v2 (9.2) — better flavour across a session, better battery per charge, on-demand mode. Out-first: Go SRT (8.6 provisional) — magnetic sealed cap, smaller body, pre-packable shells. They cost the same, so buy for your life, not your wallet.
Why is the Go SRT's score provisional?
It launched a week before my review. Vapour, heat-up and portability are judgeable in a week; reliability, battery degradation and magnet wear aren't. Full update late September 2026 — the 8.6 may move either way.
Which has the better battery?
Per charge, the Solo 3 v2 (12–15 bowls vs 10–14). Long term, the Go SRT — its 21700 is replaceable with basic tools, while the Solo 3 v2's pack is sealed. Both do USB-C PD (~90 minutes on a proper brick) and pass-through.
Do they share glass stems and accessories?
They share the Arizer ecosystem philosophy, and the Go SRT includes its own glass aroma tube alongside the Go Shells. Solo-family stems and accessories carry across the stem-based Arizers; the Go SRT's shells and cap system are its own kit.
Can I use either with a bong or water pipe?
Both. The Go SRT includes a 14mm WPA in the box — shells work better than tubes under water-pipe draw resistance, and the screen even inverts for bubbler use. The Solo 3 v2 takes water-piece adapters via the glass ecosystem but doesn't include one.
Which is easier to clean?
Both are trivial — ISO-soak the glass (and shells), the ovens stay pristine. The Solo 3 v2 is marginally simpler; the Go SRT adds shell screens as a small yearly consumable.
Is the Solo 3 v2 really not pocketable?
Not honestly. 130 × 49 × 32mm and 280g is jacket-pocket-with-intent territory, plus an exposed glass stem. If pocket carry is the mission, that's the entire reason the Go SRT exists.
About Dennis M.
Dennis M. has been vaping daily for the best part of a decade — since an original Mighty in 2018 — and has tested 50+ devices for this site. He works in IT, has ADHD, and uses cannabis for chronic pain management. He lives in Manchester with his partner Sarah, who suggested a 'one in, one out' policy for the Arizer shelf that has never been implemented, and who has now watched two nearly-identical-priced Arizers arrive in the same year.
Dennis has attempted to explain to three separate people why the smaller Arizer costs one pound and one penny more than the bigger one. He has not yet succeeded. He suspects Arizer of doing it deliberately, and he respects them for it.
A note on spelling: 'vaporizer' is the de facto international spelling, but I've stuck with the British 'vaporiser' throughout this blog.
Questions, corrections, or a device you want tested? dennis@herbvape.co.uk
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Head-to-Head Comparisons:
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Get Both at HerbVape.co.uk
Arizer Solo 3 v2 — the expedition pack: two vapes in one body for home-first users.
Buy the Solo 3 v2 →
Worth grabbing with it: Air / Solo - Glass Mouthpiece 90mm — spare glass, because tiles and borosilicate aren't friends.
Arizer Go SRT — the daysack: the first Arizer that actually earns the word "portable".
Buy the Arizer Go SRT →
Worth grabbing with it: Arizer Go SRT Shell Pack (6x Go Shells) — pre-pack the week on a Sunday night.
Just one more bowl.
Last updated: 25 September 2026.
Review Policy: I buy or borrow the devices I review. HerbVape.co.uk is my employer, but my opinions are my own — they pay me to be honest, not to sell you shite. Affiliate links and discount codes exist because running a site costs money, not because they influence scores. The Solo 3 v2 side of this comparison reflects eight months of daily use; the Go SRT side reflects one week, with a full update to follow.
Strains Used: Jack Herer — sativa (Haze × Northern Lights #5 × Shiva Skunk), ~20% THC, terpinolene/caryophyllene/pinene-dominant, pine-citrus-pepper profile with fragile top notes. Wedding Cake — indica-leaning hybrid (Triangle Kush × Animal Mints, via Triangle Mints #23), ~24% THC, caryophyllene/limonene/myrcene-dominant, vanilla-cream-dough dessert profile over peppery earth. Same two strains, same jars, across every vaporiser reviewed on this site — the strain is the control, the device is the variable. Strain effects vary by individual, batch and consumption method.
Medical & Legal Disclaimer: Nothing in this review constitutes medical advice, and I am not a medical professional. Cannabis is a controlled substance in the UK; medical cannabis is legal only on prescription from a registered specialist clinic — Sapphire, Cantourage and Zerenia are three of the larger ones. HerbVape.co.uk sells vaporiser hardware only: we do not sell, prescribe, or recommend cannabis or cannabis products. Vaporisers are sold for use with legal dry herbs and legally prescribed medical cannabis. You must be 18 or over to buy one, and cannabis law varies by jurisdiction — check yours.