Cheapest plan with 7+ days & 3GB+ (5GB+ from 15 days, 10GB+ from 180 days) from each provider, next to Japan Wireless's $7.70. Compare any two in Japan side by side.

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abesteSIM

$2.22 −71% ESIMKART10

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ASimGo

$2.24 −71% ESIMKART10

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Tripuck

$2.32 −70% ESIMKART

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Superalink

$2.39 −69% ESIMK0000

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MicroEsim

$2.49 −68% ESIMKART5

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Stellar eSIM

$2.53 −67%

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About Japan Wireless

Fully verified 12 of 12 facts confirmed

Founded: 2015
Headquarters: Tokyo, Japan
Legal entity: Inbound Platform Corporation
Website: japan-wireless.com/esim
Refund policy: eSIM orders can't be cancelled or refunded once dispatched (erroneous shipments excepted); pocket WiFi rentals cancel free before shipment. Read the policy ↗
Validity starts: Validity starts when the eSIM is actually activated, not at purchase, counted in 24-hour days; it must be activated within 30 days of purchase or it expires.
Fair-use limit: 4G Unlimited (DOCOMO) throttles to 256kbps after 3GB/day, resetting at midnight JST; 5G Unlimited (KDDI) has a general fair-use policy with no fixed daily cap stated.
Top-ups & rollover: Existing eSIMs cannot be topped up; extra data requires purchasing a new/additional data plan, per Japan Wireless's own FAQ.
Lost device / reinstalling: A Japan Wireless eSIM can only be installed once -- if you delete it from your device after installation you cannot reinstall it, and must contact Japan Wireless customer support for help.
Billing currency: Checkout lets you choose your billing currency (USD, EUR, GBP, AUD, CAD, JPY, KRW and more) via a currency selector.
Support: Live chat · Email · Phone · 7 days a week, support team based in Japan
Payment: Card · PayPal · Apple Pay · Google Pay
ID verification: Not required

Facts verified on Sep 6, 2026 from Japan Wireless's own site

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#	Data	Duration	Daily cap	Price/GB	Price/day	Price
1	Compare Best unlimited Unlimited	1 days	Not stated	—	$5.20/day	$5.20 $5.20 $4.42	Get eSIM
2	Compare 1GB	3 days	—	$5.39/GB	$1.80/day	$5.39 $5.39 $4.58 $5.39/GB	Get eSIM
3	Compare 1GB	5 days	—	$5.64/GB	$1.13/day	$5.64 $5.64 $4.79 $5.64/GB	Get eSIM
4	Compare 1GB	7 days	—	$5.89/GB	$0.84/day	$5.89 $5.89 $5.01 $5.89/GB	Get eSIM
5	Compare 3GB	5 days	—	$2.25/GB	$1.35/day	$6.76 $6.76 $5.75 $2.25/GB	Get eSIM
6	Compare Best price 3GB	7 days	—	$2.57/GB	$1.10/day	$7.70 $7.70 $6.55 $2.57/GB	Get eSIM
7	Compare 3GB	15 days	—	$2.84/GB	$0.57/day	$8.53 $8.53 $7.25 $2.84/GB	Get eSIM
8	Compare 5GB	3 days	—	$1.77/GB	$2.95/day	$8.86 $8.86 $7.53 $1.77/GB	Get eSIM
9	Compare 5GB	5 days	—	$1.86/GB	$1.86/day	$9.32 $9.32 $7.92 $1.86/GB	Get eSIM
10	Compare Best price/day 3GB	30 days	—	$3.11/GB	$0.31/day	$9.32 $9.32 $7.92 $3.11/GB	Get eSIM
11	Compare Unlimited	2 days	Not stated	—	$4.68/day	$9.36 $9.36 $7.96	Get eSIM
12	Compare 5GB	30 days	—	$2.04/GB	$0.34/day	$10.19 $10.19 $8.66 $2.04/GB	Get eSIM
13	Compare 5GB	7 days	—	$2.06/GB	$1.47/day	$10.30 $10.30 $8.76 $2.06/GB	Get eSIM
14	Compare 5GB	15 days	—	$2.18/GB	$0.73/day	$10.92 $10.92 $9.28 $2.18/GB	Get eSIM
15	Compare 10GB	3 days	—	$1.14/GB	$3.79/day	$11.36 $11.36 $9.66 $1.14/GB	Get eSIM
16	Compare 10GB	5 days	—	$1.22/GB	$2.45/day	$12.23 $12.23 $10.40 $1.22/GB	Get eSIM
17	Compare Unlimited	3 days	Not stated	—	$4.16/day	$12.48 $12.48 $10.61	Get eSIM
18	Compare 10GB	10 days	—	$1.31/GB	$1.31/day	$13.09 $13.09 $11.13 $1.31/GB	Get eSIM
19	Compare 10GB	15 days	—	$1.40/GB	$0.94/day	$14.04 $14.04 $11.93 $1.40/GB	Get eSIM
20	Compare Unlimited	4 days	Not stated	—	$3.90/day	$15.60 $15.60 $13.26	Get eSIM
21	Compare 10GB	20 days	—	$1.61/GB	$0.81/day	$16.11 $16.11 $13.69 $1.61/GB	Get eSIM
22	Compare 12GB	4 days	—	$1.36/GB	$4.08/day	$16.30 $16.30 $13.86 $1.36/GB	Get eSIM
23	Compare 10GB	30 days	—	$1.63/GB	$0.54/day	$16.33 $16.33 $13.88 $1.63/GB	Get eSIM
24	Compare Unlimited	2 days	Not stated	—	$8.32/day	$16.63 $16.63 $14.14	Get eSIM
25	Compare Best price/GB 30GB	7 days	—	$0.67/GB	$2.86/day	$20.03 $20.03 $17.03 $0.67/GB	Get eSIM
26	Compare Unlimited	3 days	Not stated	—	$6.93/day	$20.79 $20.79 $17.67	Get eSIM
27	Compare Unlimited	5 days	Not stated	—	$4.16/day	$20.80 $20.80 $17.68	Get eSIM
28	Compare 20GB	7 days	—	$1.10/GB	$3.13/day	$21.94 $21.94 $18.65 $1.10/GB	Get eSIM
29	Compare Unlimited	4 days	Not stated	—	$6.24/day	$24.95 $24.95 $21.21	Get eSIM
30	Compare Unlimited	6 days	Not stated	—	$4.16/day	$24.96 $24.96 $21.22	Get eSIM
31	Compare 20GB	10 days	—	$1.35/GB	$2.69/day	$26.94 $26.94 $22.90 $1.35/GB	Get eSIM
32	Compare 21GB	7 days	—	$1.29/GB	$3.88/day	$27.16 $27.16 $23.09 $1.29/GB	Get eSIM
33	Compare Unlimited	5 days	Not stated	—	$5.61/day	$28.07 $28.07 $23.86	Get eSIM
34	Compare Unlimited	7 days	Not stated	—	$4.16/day	$29.12 $29.12 $24.75	Get eSIM
35	Compare Unlimited	6 days	Not stated	—	$5.20/day	$31.19 $31.19 $26.51	Get eSIM
36	Compare Unlimited	8 days	Not stated	—	$3.90/day	$31.20 $31.20 $26.52	Get eSIM
37	Compare 30GB	10 days	—	$1.12/GB	$3.36/day	$33.64 $33.64 $28.59 $1.12/GB	Get eSIM
38	Compare Unlimited	7 days	Not stated	—	$5.05/day	$35.35 $35.35 $30.05	Get eSIM
39	Compare Unlimited	9 days	Not stated	—	$3.93/day	$35.36 $35.36 $30.06	Get eSIM
40	Compare 20GB	30 days	—	$1.87/GB	$1.25/day	$37.43 $37.43 $31.82 $1.87/GB	Get eSIM
41	Compare Unlimited	10 days	Not stated	—	$3.74/day	$37.44 $37.44 $31.82	Get eSIM
42	Compare 30GB	30 days	—	$1.27/GB	$1.27/day	$38.17 $38.17 $32.44 $1.27/GB	Get eSIM
43	Compare Unlimited	8 days	Not stated	—	$4.81/day	$38.47 $38.47 $32.70	Get eSIM
44	Compare Unlimited	11 days	Not stated	—	$3.59/day	$39.52 $39.52 $33.59	Get eSIM
45	Compare Unlimited	9 days	Not stated	—	$4.62/day	$41.59 $41.59 $35.35	Get eSIM
46	Compare Unlimited	12 days	Not stated	—	$3.55/day	$42.64 $42.64 $36.24	Get eSIM
47	Compare Unlimited	13 days	Not stated	—	$3.44/day	$44.72 $44.72 $38.01	Get eSIM
48	Compare Unlimited	10 days	Not stated	—	$4.58/day	$45.75 $45.75 $38.89	Get eSIM
49	Compare Unlimited	14 days	Not stated	—	$3.42/day	$47.84 $47.84 $40.66	Get eSIM
50	Compare Unlimited	11 days	Not stated	—	$4.44/day	$48.87 $48.87 $41.54	Get eSIM
51	Compare 20GB	20 days	—	$2.51/GB	$2.51/day	$50.28 $50.28 $42.74 $2.51/GB	Get eSIM
52	Compare Unlimited	15 days	Not stated	—	$3.40/day	$50.96 $50.96 $43.32	Get eSIM
53	Compare Unlimited	12 days	Not stated	—	$4.33/day	$51.99 $51.99 $44.19	Get eSIM
54	Compare Unlimited	16 days	Not stated	—	$3.32/day	$53.04 $53.04 $45.08	Get eSIM
55	Compare Unlimited	17 days	Not stated	—	$3.18/day	$54.08 $54.08 $45.97	Get eSIM
56	Compare Unlimited	18 days	Not stated	—	$3.12/day	$56.16 $56.16 $47.74	Get eSIM
57	Compare Unlimited	13 days	Not stated	—	$4.40/day	$57.19 $57.19 $48.61	Get eSIM
58	Compare 50GB	30 days	—	$1.16/GB	$1.94/day	$58.14 $58.14 $49.42 $1.16/GB	Get eSIM
59	Compare Unlimited	19 days	Not stated	—	$3.12/day	$59.28 $59.28 $50.39	Get eSIM
60	Compare Unlimited	14 days	Not stated	—	$4.46/day	$62.39 $62.39 $53.03	Get eSIM
61	Compare Unlimited	20 days	Not stated	—	$3.12/day	$62.40 $62.40 $53.04	Get eSIM
62	Compare Unlimited	21 days	Not stated	—	$3.02/day	$63.44 $63.44 $53.92	Get eSIM
63	Compare Unlimited	22 days	Not stated	—	$2.93/day	$64.48 $64.48 $54.81	Get eSIM
64	Compare Unlimited	15 days	Not stated	—	$4.37/day	$65.51 $65.51 $55.68	Get eSIM
65	Compare Unlimited	23 days	Not stated	—	$2.85/day	$65.52 $65.52 $55.69	Get eSIM
66	Compare Unlimited	24 days	Not stated	—	$2.77/day	$66.56 $66.56 $56.58	Get eSIM
67	Compare Unlimited	16 days	Not stated	—	$4.22/day	$67.59 $67.59 $57.45	Get eSIM
68	Compare Unlimited	25 days	Not stated	—	$2.70/day	$67.60 $67.60 $57.46	Get eSIM
69	Compare Unlimited	26 days	Not stated	—	$2.64/day	$68.64 $68.64 $58.34	Get eSIM
70	Compare Unlimited	17 days	Not stated	—	$4.10/day	$69.67 $69.67 $59.22	Get eSIM
71	Compare Unlimited	27 days	Not stated	—	$2.58/day	$69.68 $69.68 $59.23	Get eSIM
72	Compare Unlimited	28 days	Not stated	—	$2.53/day	$70.72 $70.72 $60.11	Get eSIM
73	Compare Unlimited	29 days	Not stated	—	$2.47/day	$71.76 $71.76 $61.00	Get eSIM
74	Compare Unlimited	18 days	Not stated	—	$4.04/day	$72.79 $72.79 $61.87	Get eSIM
75	Compare Unlimited	30 days	Not stated	—	$2.50/day	$74.88 $74.88 $63.65	Get eSIM
76	Compare Unlimited	19 days	Not stated	—	$4.00/day	$75.91 $75.91 $64.52	Get eSIM
77	Compare Unlimited	20 days	Not stated	—	$3.90/day	$77.99 $77.99 $66.29	Get eSIM
78	Compare Unlimited	25 days	Not stated	—	$3.20/day	$80.07 $80.07 $68.06	Get eSIM
79	Compare Unlimited	30 days	Not stated	—	$2.77/day	$83.19 $83.19 $70.71	Get eSIM

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Japan Wireless eSIM Plans for Japan