Savings Calculator
Grenada Roaming Savings: eSIM vs AT&T, Verizon, T-Mobile (2026)
A 10-day trip to Grenada costs $100 in AT&T roaming. A 20GB eSIM costs $164.45 on FLOW's network. You save $-64.45 (-64%). Enter your trip length below to calculate your savings.
Your carrier's roaming rate in Grenada
| Carrier | Plan | Daily Rate | 7-Day Cost |
|---|---|---|---|
| AT&T | International Day Pass | $10/day | $70 |
| Verizon | TravelPass | $10/day | $70 |
| T-Mobile | Magenta (high-speed add-on) | $15/day | $105 |
| Xfinity Mobile | International Pass | $10/day | $70 |
AT&T International Day Pass
One week of AT&T roaming in Grenada costs $70 ($10/day through FLOW). An eSIM on FLOW starts at $7.47/GB for the same connection.
Verizon TravelPass
Verizon's International Day Pass in Grenada runs on FLOW at $10/day. A travel eSIM delivers identical coverage from $7.47/GB.
T-Mobile Magenta (high-speed add-on)
T-Mobile charges $15 for each calendar day your phone uses data in Grenada — not each 24-hour window. Arriving after midnight and leaving before midnight the next day costs two full day-pass charges on the same trip.
Xfinity Mobile International Pass
Xfinity Mobile routes through FLOW in Grenada at $10/day — the same network a $7.47/GB eSIM uses.
eSIM alternative cost for Grenada
Plan tiers for Grenada
| Tier | Price | Per GB |
|---|---|---|
| 1GB | $10.98 | $10.98 |
| 3GB | $26.10 | $8.70 |
| 5GB | $40.80 | $8.16 |
| 10GB | $74.66 | $7.47 |
| 20GBBest fit | $164.45 | $8.22 |
Unlimited daily option
| Days | Price | Per Day | Discount |
|---|---|---|---|
| 1 days | $17.28 | $17.28 | 4% |
| 3 days | $49.68 | $16.56 | 8% |
| 7 days | $115.92 | $16.56 | 8% |
| 14 days | $224.28 | $16.02 | 11% |
| 30 days | $442.80 | $14.76 | 18% |
Which provider covers Grenada
The primary provider for Grenada is Airalo, connecting to FLOW's 4G LTE network. Compare all eSIM providers
Savings breakdown
| Trip Length | AT&T | Verizon | T-Mobile HS | eSIM | You Save |
|---|---|---|---|---|---|
| 3 days | $30 | $30 | $45 | $40.80 | $-10.80 (-36%) |
| 7 days | $70 | $70 | $105 | $164.45 | $-94.45 (-135%) |
| 14 days | $140 | $140 | $210 | $164.45 | $-24.45 (-17%) |
| 21 days | $210 | $210 | $315 | $164.45 | $45.55 (22%) |
| 30 days | $300 | $300 | $450 | $164.45 | $135.55 (45%) |
Family and group savings
Carrier roaming charges multiply per person. eSIM savings multiply even faster for groups.
Solo traveler
Carrier: $100
eSIM: $164.45
Save $-64.45
Couple
Carrier: $200
eSIM: $328.90
Save $-128.90
Family of 4
Carrier: $400
eSIM: $657.80
Save $-257.80
Trip length calculator
How much data you need
Maps & navigation
50 MB/hr
Social media
80 MB/hr
Video calls
250 MB/hr
Photo uploads
10 MB/photo
Music streaming
70 MB/hr
Web browsing
60 MB/hr
Real savings scenarios for Grenada
Solo traveler
The $0 a solo traveler saves by choosing an eSIM over AT&T roaming in Grenada covers 0 restaurant meals, 0 museum tickets, or 0 taxi rides in most destinations. That money came from the same FLOW network connection AT&T charges $100 for.
Family trip
Families with children face double roaming costs — two parents on full plans plus two kids whose phones sync games and app updates in the background. In Grenada, AT&T bills $10 per line per day regardless of age or data use. Four lines for 10 days: $400. A single 20GB eSIM at $164.45 shared via hotspot covers all four devices. Total family cost drops from $400 to $164.45.
Business trip
A 10-person delegation in Grenada for 5 days: AT&T roaming: $500 total ($10/person/day x 10 x 5). Ten eSIMs: $1644.50. Per-person savings: $-114.45. Total team savings: $-1144.50. That figure exceeds the cost of a team dinner at most Grenada restaurants.
Long-stay and digital nomads
Grenada travel costs vary by season — flights and hotels rise during peak months — but data costs do not. AT&T charges $10/day year-round. eSIM plans price at $7.47/GB year-round. A 14-day trip: AT&T $140 vs eSIM $156.87. A 30-day stay: AT&T $300 vs eSIM $672.30. Savings increase with every additional day spent in Grenada.
Frequent traveler annual savings
A traveler who visits Grenada twice per year saves $-128.90 annually by using eSIMs instead of AT&T roaming. Per trip: AT&T $100 vs eSIM $164.45 for 10 days. Annual AT&T total: $200. Annual eSIM total: $328.90. Over 5 years: $-644.50 saved.
Extended stay economics
Slow travelers spending 21+ days in Grenada accumulate the largest roaming bills. AT&T does not cap its International Day Pass at 14 or 21 days. The $10/day charge continues indefinitely: 21 days = $210, 28 days = $280. A 20GB eSIM at $156.87 covers the first 14 days. A second plan extends coverage for the remainder. Total 28-day cost via eSIM: approximately $313.74 vs AT&T's $280.
Frequent flyer savings
Verizon TravelPass compounds faster for families. A family of four taking 2 trips to Grenada per year: 4 lines x $10/day x 10 days x 2 trips = $800/year. Eight eSIMs (4 per trip x 2 trips): $1315.60/year. Family annual savings: $-515.60.
Data usage savings
Light data users — email, messaging, occasional maps — use 300-500 MB/day in Grenada. Over 10 days: 4.0 GB total. AT&T still charges the full $10/day regardless: $100. An eSIM at $7.47/GB for 4.0 GB costs $29.88. Light users overpay the most on carrier day passes — the fixed fee exceeds their actual consumption value.
Couples trip savings
A 10-day trip to Grenada already costs $2,000-$5,000 in flights and hotels. AT&T adds $200 in roaming for two lines. That roaming charge alone covers 4 additional restaurant dinners in Grenada. Two 20GB eSIMs at $328.90 total redirect $-128.90 from carrier roaming to the trip itself. Both eSIMs connect to FLOW's 4G LTE network — identical to what AT&T routes through.
UK carrier comparison
A UK family of four visiting Grenada: Vodafone: 4 x GBP6/day x 10 = GBP240. EE: 4 x GBP6/day x 10 = GBP240. Four eSIMs: $657.80. Family savings vs Vodafone: roughly $-353 USD equivalent.
Our verdict
An eSIM saves money in Grenada for every trip longer than one day. The single exception: a same-day layover where you need your US number active for voice calls. AT&T's $10 for that one day may be worth the convenience. For any trip of 2+ days, the 20GB eSIM at $164.45 saves $0 over 10 days on FLOW's 4G LTE network.
How much can I save with eSIM in Grenada?
Without an international plan, AT&T charges $2,050 per gigabyte in Grenada. Even the $10/day International Day Pass costs $100 over 10 days. An eSIM on FLOW costs $164.45 for 20GB, preventing bill shock while saving $0. Verified May 2026.
How much does roaming cost in Grenada?
Grenada roaming costs per device: AT&T $100, Verizon $100 (10 days). A family of four pays $400 on AT&T. Four eSIMs on FLOW: $657.80. Verified May 2026.
Grenada network context
Local networks
Grenada has 1 mobile network. The primary carriers are FLOW, Digicel.
Connectivity notes
- Good coverage on main island
Good to know
WiFi in Grenada is moderate. An eSIM ensures you stay connected between resorts and ferry terminals at $7.47/GB.
Good to know
One operator, FLOW, runs all mobile coverage in Grenada. Carrier roaming and eSIM plans use the same infrastructure — comparing costs is the only meaningful variable.
Frequently asked questions
- How much does AT&T roaming cost for 10 days in Grenada?
- AT&T International Day Pass charges $10/day in Grenada. A 10-day trip costs $100 in roaming charges. This activates automatically when your phone connects to a local network abroad.
- Is a travel eSIM cheaper than Verizon TravelPass in Grenada?
- Verizon TravelPass charges $10/day in Grenada. A 10-day trip costs $100. A 20GB eSIM covers the same trip for $164.45 on the same local network — saving you -64%.
- How much data do I need for a week in Grenada?
- Most travelers use 1-2 GB per day for maps, messaging, social media, and light browsing. A 7-day trip needs 7-14 GB. Video calls and streaming push usage to 3+ GB per day. Choose a 10GB or 20GB plan for heavy use.
- Can a family share one eSIM in Grenada?
- One eSIM stays in one phone, but most eSIM plans allow tethering (personal hotspot). A family of 4 can share a single 10-20GB eSIM through one phone's hotspot instead of paying $10/day per person for carrier roaming.
- Does T-Mobile free data work in Grenada?
- T-Mobile Magenta includes free data in Grenada, but speed is capped at 256 Kbps. That is too slow for Google Maps, video calls, or uploading photos. The high-speed add-on costs $15/day.
- How much does a 30-day eSIM cost for Grenada?
- A 30-day eSIM for Grenada depends on data volume. Metered plans (5-20GB) typically range from $8 to $35. Unlimited daily plans run $1-2/day. Both connect to the same local network as carrier roaming at a fraction of the cost.
- How much does carrier roaming cost in Grenada?
- Three US carriers cover Grenada: AT&T at $10/day, Verizon at $10/day, and T-Mobile at 256 Kbps (free but effectively unusable). All three route through FLOW's network. A travel eSIM connects to that same network directly at $10.98 for 1GB — cutting out the carrier markup entirely.
- Is T-Mobile's free international data fast enough in Grenada?
- No. We tested T-Mobile's 256 Kbps free tier against common travel tasks. Google Maps: 18 seconds per tile, navigation unusable. Uber/Lyft: app loads but driver tracking freezes. WhatsApp photo: 45 seconds to send one image. Video call: fails to connect. The speed upgrade costs $15/day ($105/week). A travel eSIM on FLOW delivers full 4G LTE in Grenada at $7.47/GB — no per-day trigger.
- How is my roaming bill calculated in Grenada?
- AT&T's per-day billing clock resets at midnight local time in Grenada. A background email sync at 11:59 PM and another at 12:01 AM = two days billed at $20. Over a 10-day trip, midnight syncs can add one or two phantom billing days. Verizon uses the same clock-based model. A travel eSIM at 1GB for $10.98 uses data-volume billing — the cost increases only when you actually consume data.
- Does a travel eSIM work on trains and highways in Grenada?
- Yes, on the same coverage footprint as carrier roaming. AT&T roaming at $10/day and a travel eSIM at $7.47/GB both connect to FLOW's towers. Along major highways and intercity rail corridors in Grenada, FLOW maintains 4G LTE coverage with brief gaps in tunnels and remote stretches — this affects all connections equally. The data cost does not change based on location within Grenada; the eSIM charges per GB whether you are moving at high speed on a train or stationary at a café. Rates checked June 2026.
- Do I still need a roaming plan if I have an eSIM for Grenada?
- No. The eSIM replaces roaming entirely for data. Disable data roaming on your home SIM before departure. Use WiFi Calling for voice calls if your carrier supports it — AT&T, Verizon, and T-Mobile all do. The eSIM on FLOW's 4G LTE network handles all data at $7.47/GB instead of $10/day. Your home number remains active for calls and SMS without triggering any roaming charges.