The biggest difference between a POA and a Will is their validity period. A Power of Attorney has its effects for while you are alive and is no longer valid after your death, whereas a Will is for after you pass away.
Though they are both legal documents which can appoint other people to manage personal belongings on your behalf, a POA nominates attorneys to help you with financial and legal affairs while a will indicates executors to administer your estates with careful instructions of how they can perform the distribution to beneficiaries upon your death.
Is having a will enough for everything?
It is important to have both an enduring power of attorney and a will.
A will has legal force after your death while A power of attorney is for your financial affairs while you are alive. When you die, your power of attorney (whether general or enduring) ceases automatically.