Vivo X100 Ultra, Vivo X100s and Vivo X100s Pro will launch next week, the Chinese smartphone brand confirmed on Monday. Vivo has listed the new handsets up for pre-reservations on its online store in China, disclosing their colour options. The Vivo X100 Ultra, Vivo X100s and Vivo X100s Pro are tipped to pack up to 16GB RAM and up to 1TB of onboard storage.