Furnished apartments generally come with essentials for daily living:
Bedroom
Bed frame and mattress
Wardrobe / dresser
Nightstand / side table
Living Room
Sofa or couch
Coffee table
Sometimes lamps or side tables
Kitchen
Refrigerator, stove / oven
Sometimes microwave
Basic cookware, utensils, and tableware (depends on the landlord)
Bathroom
Shower / bathroom fittings
Sometimes towels and basic supplies
Benefits of a Furnished Apartment
Move-in ready you can move in immediately.
No need to buy or bring furniture.
Convenient for short-term stays or people relocating.
Things to Clarify with the Landlord
Are utilities (water, electricity, internet) included in the rent?
Are bedding and towels provided?
Are kitchen utensils and small appliances included?
If you want, I can also find available one-bedroom furnished apartments in Islamabad (or any specific area) with rent details. You just need to tell me the area or budget.