WARNING: Please be aware that LG Aristo has the Proposition 65 WARNING. Please read warning on shipped package or on web search for product you are buying.
California Proposition 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Not sure about other 3 free phones if they too have Cancer warning or not. Most of the phones who are causing Cancer are on sell now a days!
Hope it helps.