The ROJECO 4L Smart Pet Feeder lets you choose the control type and bowl configuration that suits your pet. Pick WiFi app control or simple button operation, and a single bowl or a double bowl for multi-pet homes. It delivers scheduled meals from a 4L tank that holds about 2kg of dry food, with 304 stainless steel bowls and dual power for uninterrupted feeding.

Key features (all variants)
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4L large capacity: holds about 2kg of dry food. The manufacturer's footnote says this feeds a 4.5kg adult cat eating 100 to 120g a day for roughly 16 to 20 days, depending on your pet.
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Customisable meal plans: program 1 to 6 meals per day, with 1 to 60 portions per meal (approx. 6g per portion, plus or minus 2g).
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Wide kibble compatibility: supports dry food 4 to 18mm in size, suitable for cats and small to medium-sized dogs.
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304 stainless steel bowl(s): durable and easy to clean, and the manufacturer says grease does not build up easily. Choose a single or double bowl option.
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Dual power supply: runs from DC power or 4 × AA batteries (not included). A built-in emergency power supply switches to battery automatically on a power outage or network failure.
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Anti-jam soft rubber stirring slices: soft rubber slices stir the grain, and an infrared sensor reminds you when there is no grain left.
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Keep-fresh design: the manufacturer lists anti-mould, moisture-proof and anti-oxidation features, with a silica gel desiccant box to be changed every half month.
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Easy to clean: the tank lid, tank, tank base, dispenser and food bowl(s) are detachable.
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Push lock lid and manual output button: a push lock lid keeps pets out, and the manual output button dispenses a portion on demand (press it twice).
Six advantages at a glance
The manufacturer's icons are APP Control, 4L Capacity, Timed Quantification, Non-Stuck Grain, Stainless Steel Bowl and Dual Power Supply.

Variant options
| Variant |
Control method |
Bowl configuration |
Connectivity |
| WiFi + double bowl |
App + button |
Two stainless steel bowls |
2.4GHz WiFi + Bluetooth |
| WiFi + single bowl |
App + button |
One stainless steel bowl |
2.4GHz WiFi + Bluetooth |
| Button + single bowl |
Button only |
One stainless steel bowl |
No WiFi / Bluetooth |
The WiFi versions offer full remote control with the ROJECO app, feeding schedules from anywhere, real-time feeding records and device sharing with family members. The button version offers simple on-device programming and reliable, non-connected operation.
App remote control
The app has screens for the Meal Plan and the Feed Record, and a manual feed option with portion choices from 1 to 5. The manufacturer's examples show a plan that feeds 8 portions every day at 08:30 and another that feeds 2 portions on working days at 12:30.

- Connect the power. The indicator light flashes.
- Download the ROJECO app.
- Set the portions and the meal time.

Soft rubber stirring and an infrared food sensor
Soft rubber slices stir the grain to help prevent it jamming, and an infrared sensor reminds you when there is no grain left to dispense.

4L capacity with clear indicators
The 4L tank keeps food dry and fresh. A WiFi indicator shows the connection status, and the remaining food indicator flashes quickly when the food is running short. The manufacturer's footnote says 4L holds about 2kg of dry food, and the days it lasts vary with your pet.

Keep-fresh design
The manufacturer states that the feeder is designed to be anti-mould, moisture-proof and resistant to oxidation. A silica gel desiccant box sits in the tank and should be changed every half month.

Dual power supply
The built-in emergency power supply switches to battery automatically if the power or the network fails. Batteries are not included.

Dry food from 4 to 18mm
The outlet is designed for dry food 4 to 18mm across, so it suits many cat and small to medium-sized dog kibbles.

Detachable parts for easy cleaning
The tank lid, tank, tank base, dispenser and food bowl can all be detached. The labelled parts are the tank lid, tank, food outlet, soft rubber stirring slices, stainless steel food bowl(s), food bowl base, WiFi indicator and remaining food indicator. For more on keeping the feeding area tidy, read our guide to setting up a pet feeding station.

Bowl and lid details
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304 stainless steel food bowl: grease does not build up easily, according to the manufacturer.
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Push lock lid: designed to keep pets out of the food tank.
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Manual output button: press twice to dispense a portion.
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Dual-lock pet food bowl: the bowl locks in place.
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Non-slip: the base is designed to stay put at mealtime.

Specifications

| Brand |
ROJECO |
| Product |
Smart Pet Feeder |
| Capacity |
4L (about 2kg of dry food) |
| Material |
ABS + 304 food-grade stainless steel |
| Size |
320 × 305 × 335mm (as listed on the parameter card) |
| Connectivity |
WiFi + Bluetooth (WiFi versions) |
| Power |
5V DC adapter or 4 × AA batteries (not included) |
| Meal plan |
1 to 6 meals a day, 1 to 60 portions per meal |
| Food size |
4 to 18mm dry food |
| Suitable for |
Cats, small and medium-sized dogs |
What is in the box

- 1 × ROJECO 4L Pet Feeder (your chosen variant), with the tank (32cm), food bowl base (30.5cm) and tank lid (16.5 × 15cm)
- 1 × stainless steel bowl, or 2 × stainless steel bowls (14cm) with the double bowl variant
- 1 × USB cable
- 1 × power adapter (EU type)
- 1 × user manual
The adapter is supplied with a standard EU-style plug, so a plug adapter may be needed depending on your country. Batteries are not included.
Works well with
For a smaller 2L tank see the 2L smart pet feeder or the 2L button pet feeder. For more capacity, see the 4.5L WiFi smart pet feeder. Browse all automatic pet feeders, pair your feeder with one of our pet water fountain collection, and read our guide to choosing the right automatic feeder.
Frequently asked questions
Which version should I choose?
Choose a WiFi version if you want to schedule and monitor meals from your phone, and the button version if you prefer simple, non-connected control. Pick a double bowl if two pets share the feeder.
How much food does it hold?
The 4L tank holds about 2kg of dry food. The manufacturer's footnote says this lasts roughly 16 to 20 days for a 4.5kg adult cat eating 100 to 120g a day.
What size of food can it take?
Dry food from 4 to 18mm.
What happens in a power cut?
A built-in emergency power supply switches to 4 × AA batteries (not included) automatically on a power outage or a network failure.
How many meals and portions can I set?
Program 1 to 6 meals a day and 1 to 60 portions per meal. A portion is approx. 6g, plus or minus 2g.
Does it work with 5GHz WiFi?
The WiFi versions connect to a 2.4GHz network and also use Bluetooth. The button version does not use WiFi or Bluetooth.
How do I keep the food fresh?
Keep the lid closed and change the silica gel desiccant box every half month, as the manufacturer advises.
Can my pet open it?
The push lock lid is designed to keep pets out of the tank, and the food bowl locks into the base.