Let’s be real—when you’re tired of buying a new disposable every 3 days (RIP my wallet and my junk drawer full of half-dead vapes 
), two heavyweights step in: DOJO’s Sphere 40K and Foger’s Bit 35K. Both promise months of puffs, but which one actually delivers without making you sacrifice flavor or style? As someone who tested both for 2 weeks (my desk now looks like a vape lab), I’m breaking down the wins, the “meh” moments, and who each is perfect for. Spoiler: It’s not just about puff count—though that’s a big part of the fun.
1. Puff Count & Modes: 40K vs 35K—Does More Always Win? 
First, the headline stats:
- DOJO Sphere 40K: A whopping 40,000 puffs (yes, forty thousand) with two modes—Eco (slow, efficient) and Smart (balanced). I tested it for a week, vaping 20+ times a day, and it barely dipped below 95% puff count. That’s enough to last me until my next vacation
. - Foger Bit 35K: 35,000 puffs in Norm mode (smooth, all-day) and 25,000 in Boost mode (powerful, cloud-heavy). Boost mode is fun—like hitting a “flavor turbo” button—but it eats puffs fast. I burned through 1,000 puffs in a day of Boost testing (oops
).
Here’s the tea: 40K sounds better, but most vapers won’t notice the difference. The Sphere is for “set-it-and-forget-it” folks, while the Bit is for people who want to switch between “chill” and “party” vibes.
2. Design & Screens: Leather Grip vs Futuristic Bling 
Looks matter—especially if you pull your vape out in coffee shops.
- DOJO Sphere 40K: Starlight leather grip + 360-degree surround screen. It feels like holding a fancy wallet, not a disposable. The screen shows battery and e-juice level clearly, but it’s not as flashy as Foger’s. Pro: No fingerprint magnet (my last vape looked like a greaseball
). - Foger Bit 35K: Electroplated mirror finish + 3D curved OLED display. This thing shines—literally. The screen even has animated graphics (tiny bitcoin icons in Boost mode, which is a fun flex). Con: It’s a fingerprint magnet. I wiped it 5 times a day to keep it looking nice (high-maintenance, but worth it for the “wow” factor).
Bonus: Both have transparent tanks—no more guessing “is this thing empty?” (we’ve all had that panic hit 
).
3. Flavor & Coil: Smooth Hits or Bold Blasts? 
All the puffs in the world mean nothing if the flavor sucks. Both use dual mesh coils (the gold standard for even heating), but they feel different:
- DOJO Sphere 40K: 20ml e-juice + 50mg nicotine. The Smart mode delivers mellow, consistent flavor—great for all-day vaping. I tried Sour Mango Pineapple, and it tasted like fresh fruit (no chemical aftertaste). Eco mode is lighter, perfect for late nights.
- Foger Bit 35K: 18ml e-juice + 50mg nicotine. Boost mode cranks up the flavor—my Miami Mint hit was so crisp, I felt like I was breathing in a cold breeze
. Norm mode is smoother, but still bolder than DOJO’s. Only downside: Some flavors (looking at you, Orange Cranberry Lime Ice) are too tart in Boost.
Pro tip: If you have a sensitive throat, DOJO’s gentler; if you want “flavor in your face,” Foger’s your guy.
4. Price & Value: Bang for Your Buck 
Let’s talk cash—because no one wants to overpay for puffs:
- DOJO Sphere 40K: $16.99–$19.99. That’s ~$0.0004 per puff (yes, I did the math). Cheaper, more puffs, and no fancy frills—total budget win.
- Foger Bit 35K: $24.99. ~$0.0007 per puff. You’re paying for the screen and Boost mode, which is worth it if you love customization—but not if you’re pinching pennies.
Final Verdict: Who Wins? 
- Pick DOJO Sphere 40K if: You’re a “lazy vaper” who wants maximum puffs, minimal fuss, and a wallet-friendly price. It’s perfect for travel or everyday use—no babysitting required.
- Pick Foger Bit 35K if: You love tweaking settings (adjustable airflow!), want a vape that turns heads, and don’t mind paying extra for flashy features.
I’m keeping both—DOJO for workdays, Foger for weekends (Boost mode + beach vibes = chef’s kiss).
Have you tested either? Are you Team 40K Puffs or Team Boost Mode? Drop a comment below—let’s argue about which flavor hits harder (my vote’s DOJO’s Sour Mango 
). Happy puffing!