JNR and Foger represent two fundamentally different approaches to the same problem: how do you make a disposable vape that doesn't cost a fortune over time? Foger's answer is a simple magnetic swap system — pop the old pod off, snap a new one on, done. JNR's answer is more ambitious — a refillable auto-feed pod system that claims up to 100,000 puffs per battery. Both work. Both save money compared to sealed disposables. But they suit very different types of vapers.
I've been running both systems side-by-side for the past month. This comparison covers hardware, flavor lineups, real-world costs, convenience, and who should pick which.
Hardware Comparison — Full Specs
| Spec | JNR (P4 Stellarc / P5 GlassRock) | Foger |
|---|---|---|
| System Type | Refillable pod + auto-feed container | Magnetic swap pod (sealed) |
| Max Puff Claim | 100,000 | ~20,000 |
| Real Puffs Per Pod | ~7,500–8,500 | ~4,000–5,000 |
| E-Liquid Per Kit | 64mL | 16mL |
| E-Liquid Per Pod | 32mL (12mL pre-filled + 20mL bottles) | 16mL |
| Battery | 1,200mAh (P4) / 1,900mAh (P5) | 650mAh |
| Coil | 1.2Ω dual mesh | Mesh coil (sealed) |
| Charging | USB-C | USB-C |
| Display | Animated screen (P4) / Smart screen (P5) | LED battery indicator |
| Airflow | Adjustable (both models) | Fixed |
| Refillable? | Yes | No (swap only) |
| Nicotine | 5% (US Edition) | 5% |
| Kit Price | $23.99 (P4) / $24.99 (P5) | $24.99 |
| Replacement Pod | $21.99 | $12.99 |
The Core Difference: Refill vs Swap
This is the fundamental split that determines which system is right for you.
JNR's refill approach: Each pod has a 10mL container that auto-feeds into the 2mL coil tank. When the container empties, you manually refill it from included bottles. When the coil eventually degrades (after ~7,500–8,500 puffs), you replace the entire pod. It's more involved than Foger, but you get roughly double the puffs per pod and can technically use third-party e-liquid for refills.
Foger's swap approach: Pod is sealed and pre-filled. When it's empty or flavor fades, you pull it off the magnetic base and snap on a new one. No refilling, no bottles, no silicone plugs. Takes about 3 seconds. The trade-off is that each pod delivers fewer puffs and you go through pods faster.
In daily use, the difference is this: JNR requires 30–45 seconds of attention every 2,000–2,500 puffs (refilling the container). Foger requires 3 seconds of attention every 4,000–5,000 puffs (swapping the pod). Both are dramatically more convenient than buying a new sealed disposable every week — but Foger is the simpler of the two.
Battery Life — Not Even Close
JNR wins this category decisively. The P4 Stellarc's 1,200mAh battery lasts 1.5–2 days at moderate use; the P5 GlassRock's 1,900mAh stretches to 2.5–3 days. Foger's 650mAh battery needs charging once a day for moderate vapers.
If you vape heavily (500+ puffs/day), the battery gap is the deciding factor. Foger will need mid-day charging. JNR's P5 GlassRock will get you through a full heavy-use day and into the next morning. For light vapers, both are fine — but JNR still charges less often.
Flavor Lineup — Variety vs Focus
| JNR | Foger | |
|---|---|---|
| Total US Flavors | 10 | 28+ |
| Icy / Menthol | 5 | 12+ |
| Fruit (non-menthol) | 4 | 10+ |
| Candy / Dessert | 1 | 4+ |
| Tobacco | 0 | 0 |
| Sugar-Free Formula | All 10 | No |
Foger has nearly triple JNR's flavor count. If you enjoy exploring new flavors, rotating regularly, or sharing different pods with friends, Foger offers far more variety. JNR's 10-flavor lineup is tightly curated and high-quality across the board, but it's a small menu.
The sugar-free factor matters for longevity. JNR's coils last significantly longer without sweetener buildup, which partially offsets the smaller flavor selection — you can enjoy each flavor for more puffs before degradation. Foger's sweetened formulas taste bolder on first puff but fade faster as the coil ages.
For detailed tasting notes on each lineup, see JNR Vape Flavors and Foger Vape Flavors.
Real-World Cost Comparison
This is where most people make their decision. Here's a 4-month projection at moderate use (250 puffs/day):
| Expense | JNR | Foger |
|---|---|---|
| Initial Kit | $23.99 (Stellarc) | $24.99 |
| Month 1–2 Pods | $0 (kit supply lasts ~60 days) | $25.98 (2 pods × $12.99) |
| Month 3 Pods | $21.99 (1 replacement pod) | $25.98 |
| Month 4 Pods | $0 (pod still going) | $25.98 |
| 4-Month Total | $45.98 | $102.93 |
| Cost Per 1,000 Puffs | ~$1.50 | ~$3.40 |
JNR is roughly 55% cheaper over four months of equivalent use. The savings come from two factors: more e-liquid per dollar (64mL for $24 vs 16mL for $25) and fewer pod replacements (JNR pods last ~2× longer). Foger's lower per-pod price ($12.99 vs $21.99) is deceptive — you go through pods twice as fast.
Where Foger claws back value is the replacement cost floor. If you only occasionally vape, Foger's $12.99 pod is a lower commitment than JNR's $21.99 pod. For very light vapers (under 100 puffs/day), the cost difference shrinks considerably.
Convenience & Learning Curve
| Task | JNR | Foger |
|---|---|---|
| First-time setup | 5 minutes (pod assembly required) | 30 seconds (snap pod onto base) |
| Daily maintenance | None (auto-refill handles it) | None |
| Refilling container | 30–45 sec every ~2,500 puffs | N/A — pods are sealed |
| Pod swap | 5 seconds + primer puffs | 3 seconds |
| Charging frequency | Every 1.5–3 days | Daily |
| Mess potential | Moderate (refill spills possible) | Very low (sealed system) |
Foger is the more convenient system, full stop. No refilling, no bottles to carry, no silicone plugs to fumble with. If you want the closest thing to sealed-disposable simplicity with the cost savings of a pod system, Foger is the pick.
JNR requires more engagement — but rewards it with dramatically lower long-term costs and longer pod life. If you don't mind 30 seconds of effort every few days, JNR's auto-refill system becomes second nature quickly. For setup help, see How to Use JNR Vape and JNR Vape Pods guide.
Build Quality & Design
Different philosophies here. Foger devices are compact, lightweight, and pocket-friendly — they feel like a polished disposable. JNR devices feel like mini pod mods — heavier, boxier, and more substantial in the hand. The Stellarc's animated curved screen and the GlassRock's transparent body give JNR a more premium look, but Foger's simplicity has its own appeal.
Durability goes to JNR. The metal and polycarbonate construction handles drops and pocket carry better than Foger's lighter plastic body. JNR's magnetic pod connections are also stronger than Foger's, though both hold well during normal use.
Verdict — Which One Should You Buy?
| Priority | Winner | Why |
|---|---|---|
| Lowest long-term cost | JNR | 55% cheaper over 4 months |
| Maximum convenience | Foger | Zero refilling, fastest pod swaps |
| Flavor variety | Foger | 28+ vs 10 options |
| Battery life | JNR | 2–3× larger battery capacity |
| Flavor longevity per pod | JNR | Sugar-free = less coil buildup |
| Portability | Foger | Smaller, lighter, more discrete |
| Build quality | JNR | More durable construction |
| Beginner-friendly | Foger | No learning curve |
| Heavy vapers (500+/day) | JNR | Better battery + cheaper per puff |
Choose JNR if: You vape moderately to heavily, prioritize cost savings, don't mind occasional refilling, want the best battery life, and are happy sticking to a few favorite flavors.
Choose Foger if: You value simplicity above all, like rotating through different flavors, want the lightest/most portable option, or are new to pod systems and want a zero-learning-curve entry point.
Both are good choices. They're competing against sealed disposables more than against each other — and both deliver better per-puff value than any all-in-one throwaway device.
Frequently Asked Questions
Can I use JNR pods on a Foger device?
No. JNR and Foger use completely different pod systems and magnetic connections. No cross-compatibility exists between any brands.
Which has better flavor — JNR or Foger?
Comparable overall quality, different strengths. Foger's sweetened formulas taste bolder and more candy-like. JNR's sugar-free formulas taste more natural and maintain quality longer per pod. Neither is objectively better — it depends on whether you prefer sweetness or subtlety.
I'm switching from RAZ or Geek Bar — which should I try?
If you currently vape through devices quickly and want to save money, JNR offers the biggest cost reduction. If you want a similar simple experience to sealed disposables but with replaceable pods, Foger is the easier transition. Both will save you significant money compared to RAZ or Geek Bar sealed devices.
Can I buy both and switch between them?
Absolutely. Some vapers keep a Foger for flavor rotation (swap between 28+ options easily) and a JNR for their daily driver flavor (maximize value on a single favorite). The two systems serve complementary roles well.