<https://www.techdigest.tv/2015/06/vodafone-announces-budget-4g-smartphone-smart-ultra-6.html>
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"Vodafone announces budget 4G smartphone, Smart Ultra 6 - Tech Digest"
<https://www.techdigest.tv/2015/06/vodafone-announces-budget-4g-smartphone-smart-ultra-6.html>