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SeferESIM

SeferESIM offers prepaid travel eSIM data plans for compatible devices. Buy online without creating an account, receive installation instructions digitally, and choose a plan by destination, data allowance and validity. Customer support is available at support[at]seferesim.com.

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Usage limit: Unlimited

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SeferESIM eSIM Data Plans for Japan

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Japan 100MB 7Days

Data: 100MB
Validity: 7 Days
Price/GB: $22.70/GB
Price: $2.27

Japan 500MB 7Days

Data: 500MB
Validity: 7 Days
Price/GB: $4.74/GB
Price: $2.37

Japan 500MB/Day

Data: 500MB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $4.96/GB
Price: $2.48

Japan 500MB/Day (IIJ)

Data: 500MB
+ ∞ 256kbps
Validity: 1 Day
Price/GB: $4.96/GB
Price: $2.48

Japan 500MB/Day (nonhkip)

Data: 500MB
+ ∞ 512kbps
Validity: 1 Day
Price/GB: $5.00/GB
Price: $2.50

Japan 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $2.69/GB
Price: $2.69

Japan 1GB 7Days (IIJ)

Data: 1GB
Validity: 7 Days
Price/GB: $2.69/GB
Price: $2.69

Japan 1GB/Day FUP1Mbps

Data: 1GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $2.79/GB
Price: $2.79

Asia (14 areas) 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $2.94/GB
Price: $2.94

Japan 1GB/Day (nonhkip)

Data: 1GB
+ ∞ 512kbps
Validity: 1 Day
Price/GB: $2.96/GB
Price: $2.96

China mainland & Japan & South Korea 500MB/Day

Data: 500MB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $5.92/GB
Price: $2.96

Japan 1GB/Day

Data: 1GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $3.00/GB
Price: $3.00

Japan 1GB/Day (IIJ)

Data: 1GB
+ ∞ 256kbps
Validity: 1 Day
Price/GB: $3.00/GB
Price: $3.00

Asia (14 areas) 1GB/Day FUP1Mbps

Data: 1GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $3.05/GB
Price: $3.05

Japan 1GB 7Days (nonhkip)

Data: 1GB
Validity: 7 Days
Price/GB: $3.06/GB
Price: $3.06

Japan & South Korea 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $3.09/GB
Price: $3.09

Japan & South Korea 1GB/Day

Data: 1GB
+ ∞ 512kbps
Validity: 1 Day
Price/GB: $3.09/GB
Price: $3.09

Japan 2GB 15Days

Data: 2GB
Validity: 15 Days
Price/GB: $1.61/GB
Price: $3.22

Japan & South Korea 1GB/Day FUP1Mbps

Data: 1GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $3.22/GB
Price: $3.22

Asia (12 areas) 500MB/Day

Data: 500MB
+ ∞ 128kbps
Validity: 1 Day
Price/GB: $6.70/GB
Price: $3.35

Japan 2GB/Day FUP1Mbps

Data: 2GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $1.82/GB
Price: $3.64

Asia (20 areas) 500MB/Day

Data: 500MB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $7.28/GB
Price: $3.64

Japan 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $1.25/GB
Price: $3.74

Japan 3GB 15Days (IIJ)

Data: 3GB
Validity: 15 Days
Price/GB: $1.25/GB
Price: $3.74

China mainland & Japan & South Korea 1GB/Day

Data: 1GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $3.80/GB
Price: $3.80

Japan 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $1.28/GB
Price: $3.85

Japan 3GB 30Days (IIJ)

Data: 3GB
Validity: 30 Days
Price/GB: $1.28/GB
Price: $3.85

Japan 2GB/Day (nonhkip)

Data: 2GB
+ ∞ 512kbps
Validity: 1 Day
Price/GB: $1.95/GB
Price: $3.89

China mainland & Japan & South Korea 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $3.89/GB
Price: $3.89

Asia (14 areas) 2GB/Day FUP1Mbps

Data: 2GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $2.02/GB
Price: $4.04

Japan 2GB/Day (IIJ)

Data: 2GB
+ ∞ 256kbps
Validity: 1 Day
Price/GB: $2.03/GB
Price: $4.06

Japan 2GB/Day

Data: 2GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $2.03/GB
Price: $4.06

Japan & South Korea 2GB/Day FUP1Mbps

Data: 2GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $2.28/GB
Price: $4.56

Asia (12 areas) 1GB/Day

Data: 1GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $4.76/GB
Price: $4.76

Asia (12 areas) 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $4.90/GB
Price: $4.90

Asia (14 areas) 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $1.67/GB
Price: $5.00

Asia-20 1GB 7 Days

Data: 1GB
Validity: 7 Days
Price/GB: $5.04/GB
Price: $5.04

Asia-20 1GB 30 Days

Data: 1GB
Validity: 30 Days
Price/GB: $5.18/GB
Price: $5.18

Asia (14 areas) 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $1.77/GB
Price: $5.30
5% OFF

Japan 5GB 30Days

Data: 5GB
Validity: 30 Days
Price/GB: $1.08/GB
Price: $5.40
5% OFF

Japan 5GB 30Days (IIJ)

Data: 5GB
Validity: 30 Days
Price/GB: $1.08/GB
Price: $5.40
5% OFF

SefereSIM 5 GB Japan (every 7 days)

Data: 5GB/week
Validity: Weekly
Subscription
Price/GB: $1.08/GB
Price: $5.40/week

Asia (14 areas) 3GB/Day FUP1Mbps

Data: 3GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $1.87/GB
Price: $5.62
5% OFF

Japan 3GB 15Days (nonhkip)

Data: 3GB
Validity: 15 Days
Price/GB: $1.91/GB
Price: $5.72
5% OFF

Japan & South Korea 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $1.91/GB
Price: $5.74
5% OFF

Japan 3GB 30Days (nonhkip)

Data: 3GB
Validity: 30 Days
Price/GB: $1.97/GB
Price: $5.90
5% OFF

Asia (20 areas) 1GB/Day

Data: 1GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $6.00/GB
Price: $6.00
5% OFF

Japan 500MB/Day (7 days)

Data: 500MB/day
+ ∞ 384kbps
Validity: 7 Days
Price/GB: $1.84/GB
Price: $6.44
5% OFF

Japan 500MB/Day (IIJ) (7 days)

Data: 500MB/day
+ ∞ 256kbps
Validity: 7 Days
Price/GB: $1.84/GB
Price: $6.44
5% OFF

Japan & South Korea 3GB/Day FUP1Mbps

Data: 3GB
+ ∞ 1Mbps
Validity: 1 Day
Price/GB: $2.15/GB
Price: $6.46
5% OFF

Japan & South Korea 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $2.16/GB
Price: $6.48
5% OFF

Japan 500MB/Day (nonhkip) (7 days)

Data: 500MB/day
+ ∞ 512kbps
Validity: 7 Days
Price/GB: $1.91/GB
Price: $6.70
5% OFF

China mainland & Japan & South Korea 2GB/Day

Data: 2GB
+ ∞ 128kbps
Validity: 1 Day
Price/GB: $3.44/GB
Price: $6.88
5% OFF

Asia (20 areas) 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $7.20/GB
Price: $7.20
5% OFF

Asia (14 areas) 5GB/Day

Data: 5GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $1.46/GB
Price: $7.28
5% OFF

Japan 5GB 30Days (nonhkip)

Data: 5GB
Validity: 30 Days
Price/GB: $1.58/GB
Price: $7.92
5% OFF

Asia (14 areas) 5GB 30Days

Data: 5GB
Validity: 30 Days
Price/GB: $1.66/GB
Price: $8.32
5% OFF

Japan & South Korea 5GB/Day

Data: 5GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $1.68/GB
Price: $8.38
5% OFF

Global (120+ areas) 1GB/Day

Data: 1GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $8.90/GB
Price: $8.90
5% OFF

China mainland & Japan & South Korea 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $3.04/GB
Price: $9.12
5% OFF

Global (120+ areas) 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $9.20/GB
Price: $9.20
5% OFF

Asia (12 areas) 2GB/Day

Data: 2GB
+ ∞ 128kbps
Validity: 1 Day
Price/GB: $4.62/GB
Price: $9.24
5% OFF

Japan 10GB 30Days

Data: 10GB
Validity: 30 Days
Price/GB: $0.94/GB
Price: $9.40
5% OFF

Japan 10GB 30Days (IIJ)

Data: 10GB
Validity: 30 Days
Price/GB: $0.94/GB
Price: $9.40
5% OFF

China mainland & Japan & South Korea 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $3.15/GB
Price: $9.44
5% OFF

Japan 10GB/Day (nonhkip)

Data: 10GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $0.97/GB
Price: $9.68
5% OFF

Japan 10GB/Day

Data: 10GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $1.00/GB
Price: $10.00
5% OFF

Japan 1GB/Day FUP1Mbps (7 days)

Data: 1GB/day
+ ∞ 1Mbps
Validity: 7 Days
Price/GB: $1.47/GB
Price: $10.30
5% OFF

SefereSIM Unlimited Japan (every 7 days)

Data: 1GB/day
+ ∞ 1Mbps
Validity: Weekly
Subscription
Price/GB: $10.30/GB
Price: $10.30/week

Japan & South Korea 5GB 30Days

Data: 5GB
Validity: 30 Days
Price/GB: $2.08/GB
Price: $10.40
5% OFF

Global139 1GB 7Days

Data: 1GB
Validity: 7 Days
Price/GB: $10.64/GB
Price: $10.64
5% OFF

Asia (20 areas) 2GB/Day

Data: 2GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $5.80/GB
Price: $11.60
5% OFF

Asia (12 areas) 3GB/Day

Data: 3GB
+ ∞ 128kbps
Validity: 1 Day
Price/GB: $4.06/GB
Price: $12.18
5% OFF

Asia (12 areas) 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $4.11/GB
Price: $12.32
5% OFF

Japan 1GB/Day (nonhkip) (7 days)

Data: 1GB/day
+ ∞ 512kbps
Validity: 7 Days
Price/GB: $1.77/GB
Price: $12.36
5% OFF

China mainland & Japan & South Korea 500MB/Day (7 days)

Data: 500MB/day
+ ∞ 384kbps
Validity: 7 Days
Price/GB: $3.53/GB
Price: $12.36
5% OFF

Japan 500MB/Day (14 days)

Data: 500MB/day
+ ∞ 384kbps
Validity: 14 Days
Price/GB: $1.78/GB
Price: $12.46
5% OFF

Japan 500MB/Day (IIJ) (14 days)

Data: 500MB/day
+ ∞ 256kbps
Validity: 14 Days
Price/GB: $1.78/GB
Price: $12.46
5% OFF

Asia-20 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $4.15/GB
Price: $12.46
5% OFF

Asia (12 areas) 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $4.20/GB
Price: $12.60
5% OFF

Japan 1GB/Day (7 days)

Data: 1GB/day
+ ∞ 384kbps
Validity: 7 Days
Price/GB: $1.84/GB
Price: $12.88
5% OFF

Japan 1GB/Day (IIJ) (7 days)

Data: 1GB/day
+ ∞ 256kbps
Validity: 7 Days
Price/GB: $1.84/GB
Price: $12.88
5% OFF

Asia-20 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $4.29/GB
Price: $12.88
5% OFF

Japan 500MB/Day (nonhkip) (14 days)

Data: 500MB/day
+ ∞ 512kbps
Validity: 14 Days
Price/GB: $1.85/GB
Price: $12.96
5% OFF

Japan 10GB 30Days (nonhkip)

Data: 10GB
Validity: 30 Days
Price/GB: $1.32/GB
Price: $13.20
5% OFF

Asia (14 areas) 1GB/Day FUP1Mbps (7 days)

Data: 1GB/day
+ ∞ 1Mbps
Validity: 7 Days
Price/GB: $1.91/GB
Price: $13.40
5% OFF

Asia (14 areas) 10GB/Day

Data: 10GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $1.35/GB
Price: $13.52
5% OFF

Japan & South Korea 1GB/Day (7 days)

Data: 1GB/day
+ ∞ 512kbps
Validity: 7 Days
Price/GB: $1.99/GB
Price: $13.92
5% OFF

Global (120+ areas) 1GB 365Days

Data: 1GB
Validity: 365 Days
Price/GB: $14.00/GB
Price: $14.00
5% OFF

China mainland & Japan & South Korea 5GB 30Days

Data: 5GB
Validity: 30 Days
Price/GB: $2.82/GB
Price: $14.08
5% OFF

Global (120+ areas) 2GB/Day

Data: 2GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $7.52/GB
Price: $15.04
5% OFF

Japan & South Korea 10GB/Day

Data: 10GB
+ ∞ 384kbps
Validity: 1 Day
Price/GB: $1.51/GB
Price: $15.12
5% OFF

Asia (14 areas) 10GB 30Days

Data: 10GB
Validity: 30 Days
Price/GB: $1.52/GB
Price: $15.18
5% OFF

Japan & South Korea 1GB/Day FUP1Mbps (7 days)

Data: 1GB/day
+ ∞ 1Mbps
Validity: 7 Days
Price/GB: $2.21/GB
Price: $15.46
5% OFF

Japan 20GB 30Days (IIJ)

Data: 20GB
Validity: 30 Days
Price/GB: $0.82/GB
Price: $16.40
5% OFF

SefereSIM 20 GB Japan (every 30 days)

Data: 20GB/month
Validity: Monthly
Subscription
Price/GB: $0.82/GB
Price: $16.40/month

Asia (12 areas) 500MB/Day (7 days)

Data: 500MB/day
+ ∞ 128kbps
Validity: 7 Days
Price/GB: $4.90/GB
Price: $17.14
5% OFF

Asia (20 areas) 3GB 15Days

Data: 3GB
Validity: 15 Days
Price/GB: $5.93/GB
Price: $17.80
5% OFF

Asia (20 areas) 3GB 30Days

Data: 3GB
Validity: 30 Days
Price/GB: $6.13/GB
Price: $18.40
5% OFF

Asia (12 areas) 5GB 30Days

Data: 5GB
Validity: 30 Days
Price/GB: $3.78/GB
Price: $18.90
5% OFF

SeferESIM for Japan FAQ

Does SeferESIM offer unlimited data eSIM for Japan?

SeferESIM does not provide a truly unlimited data eSIM for Japan. The plans that carry the “Unlimited” name actually give 1 GB per day and, once that amount is reached, the speed is reduced to 1000 kbps. Therefore the data is capped and not unlimited.

Travelers who need more data can choose from SeferESIM’s fixed data plans. For example, the Japan 50GB 30Days plan offers 50 GB of high‑speed 5G data for 30 days at $34.00 USD, and the Japan 20GB 30Days (IIJ) plan provides 20 GB for 30 days at $16.40 USD. These fixed plans give larger data allowances without the speed throttling that applies to the “Unlimited” plans.

Does SeferESIM offer Japan eSIM with phone number and SMS?

SeferESIM does not currently provide an eSIM for Japan that includes a phone number or SMS capability; only data‑only plans are offered for this destination. Travelers who need to make calls or send messages can use VoIP applications such as WhatsApp, Telegram, and iMessage over the data connection, although they should verify that these services are accessible in Japan before purchasing, because some destinations may block or restrict certain apps or VoIP services.

How many data plans does SeferESIM offer for Japan?

SeferESIM offers 79 single‑country data plans that cover Japan and 146 multi‑country plans that include Japan. The available plans range in price from $0.60 to $464.94 and vary in data cap from 100 MB up to 50 GB, with validity periods spanning 1 to 365 days. Some plans are fixed data‑cap concepts, where a set amount of data is allocated for the entire validity, while others are daily‑data‑cap plans that reset each day and allow a specific amount of data to be used per day. This breadth of options allows travelers to choose a plan that best matches their usage needs and budget.

Summarized by AI, Last updated:

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