Real Numbers From Real Use

The Sport’s 2700mAh battery is 35% larger than the Carta 2’s internal cell. Focus V rates it at up to 50 dabs on a single charge, which is accurate at the lowest heat setting. Real-world usage at mid-range temperatures (around 515°F) gets you 30 to 35 sessions. Running red at 565°F for every session drops that to 20-25 dabs on a single charge. Either way, most users charge once or twice a week.

Cell balancing and improved power management circuitry help the battery deliver consistent heating cycles from the first session to the last. You won’t notice weaker hits as the charge drops, which is a common complaint with cheaper e-rigs that lose heating power below 30% battery. The Sport maintains steady output until it shuts off automatically to protect the cell.

Fast Charging When You Need It

USB-C charging takes the battery from dead to full in under 2 hours. A quick 15-minute charge gets you 5-6 sessions. Pass-through charging means you can use it plugged in, which works well for desktop-style sessions at home. Forget to charge overnight? Plug it in while you load your first dab and you’ll have enough battery life for a full morning.

Use What You Already Own

The Sport accepts every Carta glass top ever made. OG Carta glass fits. Carta 2 glass fits. Aftermarket glass tops from artists like King Pluto fit. If you’re upgrading from a Carta 2, your entire glass collection carries over. No adapters, no modifications.

The stock glass top is a smoked borosilicate piece that handles daily use without issue. It provides solid water filtration and enough chug to cool vapor before it reaches you. For a different experience, swap in a recycler-style top for smoother pulls or a dry top for more direct flavor. The glass attachment removes with a gentle twist, so switching between styles mid-session takes a few seconds.

Bubble Cap for Airflow Control

The Sport ships with a bubble cap and silicone tether. This directional cap lets you push concentrate around the chamber during a session, making sure nothing sits untouched on the walls. Twist it during your draw to create a vortex effect that improves extraction. The silicone tether keeps it attached to the glass top so you’re not hunting for a loose cap between sessions. Earlier production runs included a control stick instead, but Focus V switched to the bubble cap in July 2025 for better compatibility and airflow performance.

Simple by Design

The V-button handles everything. Five clicks to power on, one click to cycle temperature settings, double-click to start heating, four clicks to check battery level, three clicks to change LED modes. The device vibrates when it reaches your selected temperature and again when the session timer ends. Stop heating cycles early with a single click if your dab finishes before the timer runs out.

This single-button approach replaces the Carta 2’s three-button layout and OLED screen. It’s faster to operate one-handed and there’s nothing to break or malfunction. For users who want screen-level control, the Focus V browser app provides full customization via Bluetooth without adding physical complexity to the device itself.

The Carta Sport fits a few specific use cases well. Daily users who want a reliable session device without fussing with settings will appreciate the one-button simplicity. The 2700mAh battery and 30+ real-world sessions per charge mean you’re not tethered to a charging cable. And the removable Carta Connect airpath makes maintenance realistic for people who actually use their e-rig every day rather than keeping it on display.

It’s also a strong choice for Carta 2 owners whose device is aging out. Every accessory carries forward, the battery life is significantly better, and the Carta Connect solves the reclaim buildup issue that Carta 2 users know all too well. The simplified controls take a session or two to learn, but most Carta 2 users end up preferring the one-button approach once the muscle memory builds.

If you need precise temperature readouts on the device itself (not through the app), or if you want a built-in screen, the Sport isn’t designed for that. It trades visual feedback for physical simplicity. Users who want display-level control on the hardware itself may want to wait for the Carta 3, which is expected to include a full-color screen.