Taking place 12 years to the day after vegetable seller Mohamed Bouazizi set himself on fire in an act of protest that sparked the so-called Arab Spring, the vote is being boycotted by political parties which have accused Saied of mounting a coup. 

Voters will be choosing a parliament in line with a new constitution, approved with a low turnout in a July referendum. 

Nejib Chebbi, head of an anti-Saied coalition including Ennahda, has labelled the election a "still-born farce". 

Saied shut the previous parliament down last year, assuming near total authority. 

The vote appears to have stirred little interest among a population jaded by political dysfunction and struggling with economic hardship. 

Voting is due to take place from 8 a.m.- 6 p.m. (0700 GMT-1700 GMT). 

Saied, a former law lecturer who was a political independent when elected president in 2019, has described the election as part of a roadmap for ending the chaos and corruption he says afflicted Tunisia under the previous system. 

His opponents including the Islamist Ennahda party meanwhile accuse him of a coup, and have rejected the ballot along with all the president's other moves since last summer. 

The election is taking place against the backdrop of an economic crisis that is fueling poverty, leading many to attempt the perilous journey to Europe aboard smugglers' boats. 

With the main parties absent, a total of 1,058 candidates - only 120 of them women - are running for 161 seats. 

For 10 of those - seven in Tunisia and three decided by expatriate voters - there is just one candidate. A further seven of the seats decided by expatriate voters have no candidates running at all.