Optimum Mobile leverages T-Mobile 4G LTE and 5G networks. T-Mobile has America's largest 5G network with more 5G bars in more places. Fastest: Based on median, overall combined 5G speeds according to analysis by Ookla® of Speedtest Intelligence® data 5G download speeds for Q4 2022. 5G capable device required; 5G not available in all areas.

iPhone 16 Pro 128 GB ON US with trade-in. For well-qual. new or existing customers on Unlimited Max plan. Savings applied as 36-monthly bill credits toward the purchase or finance of an iPhone 16 Pro 128 GB. Trade-in value of $340+ is req'd. Credits cannot exceed the device cost. Trade-in cond'ns apply. Trade-in must be shipped w/in 21 days of iPhone 16 Pro purch. Monthly trade-in credits (trade-in value) & 'iPhone ON US' credits start w/in 3 bill cycles once trade-in is complete. iPhone 16 Pro ON US credits will not be displayed in check-out. Max 2 per acct. Customer must remain in good standing with no past due or returned payments throughout promo period to maintain iPhone 16 Pro ON US credits. Changes in phone or plan may result in cancellation of remaining 'iPhone ON US' credits. Cancellation of service will result in termination of credits and the remaining balance on the financing agreement will be owed. Tax on pre-credit price due at sale. Returns allowed w/in 21 days of service subj to restocking fee. Offer subj to discontinuance or change at any time. While supplies last. All rights reserved. All trademarks and service marks are the property of their respective owners. © 2024 CSC Holdings, LLC.

New customers only. Limited-time offer; subject to change. Qualifying credit, Unlimited Max plan, new financed full-priced smartphone & trade-in required. Not combinable with other device offers or device discounts. $20 device connection charge due at sale. Submit proof of previous balance and verification of 90+ days active and in good standing w/ prior postpaid carrier via https://mobileoffers.optimum.com/#/23-21021 within 30 days of sign up. Receive a virtual Optimum Prepaid Mastercard with up to $400 per new Unlimited Max line (up to 5 lines) typically sent approx. 90 days of submission. We might ask for more information. One offer per Unlimited Max line up to five lines.

Virtual prepaid card is issued by Pathward®, N.A., Member FDIC, pursuant to license by Mastercard International Incorporated. Mastercard and the circles design are registered trademarks of Mastercard International Incorporated. No cash access or recurring payments. Can be used where Debit Mastercard is accepted online, for phone/mail orders, or in stores that accept mobile wallet. Valid for up to 12 months; unused funds will forfeit after the valid thru date. Terms and conditions apply.

Savings claim against Verizon based on comparison of 2 lines of service with Optimum Mobile Unlimited Max plan vs Verizon Unlimited Plus plan as of 12/15/23. Savings claim against AT&T based on comparison of 2 lines of service with Optimum Mobile Unlimited plan vs AT&T Unlimited Starter plan as of 3/27/24.

CONNECT WITH CONFIDENCE(MOBILE) MONEY BACK GUARANTEE: Optimum must be contacted within first 60 days of service to receive refund of Mobile monthly service and activation fees. Refund only applies to Mobile monthly service and activation fees. Customers without remaining account balance will receive refund to original payment method. Customers with remaining account balances will receive a bill credit. Devices purchases and financing not refundable. 21-day device return policy applies (subject to $50 restocking fee). CONNECT WITH CONFIDENCE(MOBILE) REIMBURSEMENT: Optimum must be contacted within first 60 days of service to receive and reimbursement of competitor activation charges (up to $25). To receive reimbursement for competitor activation charges (up to $25), customer must provide 1st bill reflecting activation charge from new provider within 60 days of disconnection.Visit Optimum.com FAQ page for details on how to submit new provider bill for reimbursement. Eligible customers will receive a virtual Prepaid Mastercard with reimbursement amount within approx. 2 weeks of validation. PREPAID MASTERCARD: Limit 1 per customer. Virtual card is issued by Pathward®, N.A., Member FDIC, pursuant to license by Mastercard International Incorporated. Mastercard and the circles design are registered trademarks of Mastercard International Incorporated. No cash access or recurring payments. Virtual card can be used where Debit Mastercard is accepted online, for phone/mail orders or in stores that accept mobile wallet. Virtualcard valid for up to 6 months; unused funds will forfeit after the valid thru date. Terms and conditions apply.

1 GB, 5 GB, UNLIMITED & UNLIMITED MAX PLAN DETAILS: AutoPay required. New Optimum Mobile lines only, cannot be applied to existing lines of service. Other monthly charges apply per line, including $20 activation fee, and may include roaming charges, taxes, government fees and other Optimum Mobile fees and surcharges (including USF fee). Pricing, offer and terms subject to change at any time. Data options may be switched at any time during bill cycle. Downgrade limited to 1x per bill cycle and effective with following bill cycle. Upgrades effective immediately. International talk/text from U.S. and talk/text/data while traveling abroad not included.

MULTI-LINE SAVINGS: $30/mo. Unlimited and $40/mo. Unlimited Max pricing reflects per line charge for domestic talk, text and Unlimited data. Requires 2+ lines of service. Autopay required. Other terms and conditions apply; visit www.optimum.com/mobile/plan for plan details.

Get 2 Unlimited lines for $45/mo. or 2 Unlimited Max lines for $55/mo. for 12 months via monthly bill credits. Number must be transferred w/in 14 days. Must maintain Unlimited or Unlimited Max lines and acct must remain in good standing with no past due or returned payments to rcv credits. Credits start w/in 3 bill cycles. 2+ lines req'd. Reg. multiline price applies to add'l lines. New customers only. Autopay req'd. Cannot be combined with other service offers. Lim. time offer. Other terms and conditions apply; www.optimum.com/mobile/plan for plan details.

Get 2 Unlimited lines for $45/mo. or 2 Unlimited Max lines for $55/mo. for 12 months via monthly bill credits. Number must be transferred w/in 14 days. Must maintain Unlimited or Unlimited Max lines and acct must remain in good standing with no past due or returned payments to rcv credits. Credits start w/in 3 bill cycles. 2+ lines req'd. Reg. multiline price applies to add'l lines. New customers only. Autopay req'd. Cannot be combined w/ other offers. Lim. time offer. Other terms and conditions apply.