MELLA counts down; Groclock targets a time
MELLA has a manually activated nap countdown alongside its wake and bedtime schedules. LittleHippo confirms the Version 2.0 mode but does not publish its exact duration range.
Groclock stores separate night and daytime-nap wake times. The caregiver activates the relevant mode, and the cue changes at the selected time of day.
MELLA adds a sound machine and pre-wake phase
MELLA includes a sound machine and a 30-minute pre-wake cue for its regular wake schedule. Groclock does not include a sound machine. Both support a visual-only cue or a separate audible alarm, plus adjustable light brightness.
Neither operates from its memory backup
MELLA's CR2032 coin cell preserves basic settings but is not documented to run the display, light, or sound. Groclock freezes its time and saved values when power stops, then resumes from that frozen time when power returns.
MELLA includes its AC wall adapter and four-foot cable. Groclock includes a 1.8-metre micro-USB cable but no wall adapter.
Choose by nap workflow
- Choose MELLA when you want to start a duration countdown at nap time or also want built-in sounds.
- Choose Groclock when you want separate night and nap end times stored as times of day.
- Correct Groclock's time after a long outage before relying on a stored cue; do not expect MELLA's coin cell to run a cue during one.
At a glance
Not confirmed means a required-feature filter will not include that model.
| Feature | LittleHippo MELLA Version 2.0 manual | Tommee Tippee Groclock USB/Ollie display |
|---|---|---|
| Setup | Set on the clock | Set on the clock |
| Starting a mode | A caregiver starts the selected mode | A caregiver starts the selected mode |
| Edit schedules without internet | Yes | Yes |
| Caregiver app sharing | Caregivers use the clock’s physical controls; app invitations are not part of this setup. Check the exact button sequence and lock before handing over. This does not establish resistance to a child changing settings. | Caregivers use the clock’s physical controls; app invitations are not part of this setup. Check the exact button sequence and lock before handing over. This does not establish resistance to a child changing settings. |
| Operating power | External power required | External power required |
| Power loss | The coin cell preserves basic memory settings; it is not documented as operating the display, light or sound during an outage. | Power loss freezes the clock and saved values; it does not keep time or operate until power returns, so a long outage leaves the displayed time behind by the outage duration. |
| Bedtime time | Yes | No |
| Nap countdown | Yes | No |
| Nap wake time | Not confirmed | Yes |
| Weekday / weekend | No | No |
| Multiple daily cues | No | No |
| Saved cues without Wi-Fi | Yes | Yes |
| Offline limits | No network required for the documented on-device functions. | No network required for the documented on-device functions. |
| Audible alarm | Yes | Yes |
| Sound machine | Yes | No |
| Silent visual cue | Yes | Yes |
| Display can turn off | Yes | Yes |
| Child lock | Yes | Yes |
| Subscription for core cue | No | No |
| Included parts | MELLA clock, 4 ft cable, AC wall adapter, Instruction manual | Groclock, 1.8 m micro-USB cable |
Manufacturer references
Material reviewed 2026-09-07. Specifications can vary by generation and region.