https://www.reuters.com/article/us-samsung-elec-smartphone/samsung-unveils-compact-foldable-phone-5g-galaxy-s20-to-fend-off-apple-huawei-idUSKBN2050DJ >Samsung Electronics on Tuesday unveiled a foldable smartphone shaped like a large makeup compact and put 5G mobile network capabilities into all of its other flagship devices as it strives to retain the mantle of biggest global phone company.