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Quick answer

Which GT-1 size should I choose?

Choose 10oz for a compact coffee portion, 14oz for everyday flexibility, and 16oz for longer work or study sessions. All three sizes use the same 30-65°C temperature range and replaceable magnetic powered-base concept.

Open the full comparison →

Away from the outlet

Why choose GT-1 when plugging in is inconvenient?

Once the matched powered compartment is charged and attached, GT-1 can regulate the drink away from the charging coaster for the model’s stated battery period. Actual runtime varies with starting temperature, ambient temperature, drink volume, set point and battery state.

  1. Outdoor meals and work breaks

    Bring a charged GT-1 to a campsite table or outdoor work break without keeping the mug on a powered plate.

  2. Patio or garden seating

    Move from indoor coffee preparation to patio or garden seating while the matched powered compartment continues regulating the drink.

  3. Meeting rooms

    Carry coffee into a meeting without choosing a seat beside an outlet or keeping the mug on its charging coaster.

  4. Balcony coffee

    Use a small balcony table while the charged GT-1 powered compartment regulates the drink during its battery period.

Power-system boundary: GT-2 is the connected desk option; its dedicated base is not the GT-1 battery-powered portable system. These examples describe ordinary portable routines, not a waterproofing claim. Keep every magnetic and charging contact completely dry.

Pink GREATIC GT-2 16oz heated coffee mug with white handle and matching base in a bright reading space

Portable power or desk-powered warmth

Choose the heating system that matches your routine.

Choose GT-1 for battery-powered temperature control away from the charging coaster. Choose GT-2 for a connected 16oz heated mug and a base that can charge a compatible phone after the mug is removed and the base cools.

Black GREATIC GT-1 10oz heated mug on a compact side table for a short coffee break
10oz

For compact coffee routines

A smaller footprint for shorter drinks, side tables and tighter desks.

Choose a 10oz color →
Black GREATIC GT-1 14oz heated mug in a warm office breakfast setting
14oz

For flexible everyday use

A balanced capacity for office, home, reading and creative work.

Choose a 14oz color →

Need more time?

Rotate a second magnetic powered base.

The GT-1 battery and control electronics are contained in the shared black removable powered compartment. The 10oz, 14oz and 16oz models use the same black charging-base system. A second A$68.85 base can be kept ready and rotated when your routine extends beyond a single base cycle.

Only use the compatible GREATIC GT-1 system. Keep every magnetic and charging contact completely dry before reconnecting.

View the powered base
Real black GREATIC GT-1 mug with its removable powered compartment magnetically attached on a desk

Know the limits

Product truth belongs in the buying decision.

Runtime varies
01

Runtime varies

At 55°C under stated conditions: up to 150 minutes for 10oz, 120 minutes for 14oz and 90 minutes for 16oz.

Wipe clean only
02

Wipe clean only

The mug must not be rinsed, soaked, dishwashed or microwaved.

Products in development
03

Products in development

New GREATIC products remain unavailable for purchase until testing, specifications, care guidance and release details are complete.