Cheapest plan with 7+ days & 3GB+ (5GB+ from 15 days, 10GB+ from 180 days) from each provider, next to ByteSim's $4.50. Compare any two in Vietnam side by side.

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$2.19 −51% ESIMK0000

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$2.21 −51% ESIMKART5

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$2.24 −50%

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About ByteSim

10 of 12 facts confirmed

Still researching: Legal entity · ID verification

Founded: 2022
Headquarters: Wan Chai, Hong Kong
Website: bytesim.com
Refund policy: Full or partial refund for connection issues, depending on the situation; no cancellation fees and a money-back guarantee (ByteSIM FAQ). Full terms are on their Refunds Policy page. Read the policy ↗
Validity starts: Most plans start when the eSIM first connects to a network at the destination; some start on a selected date, in the app or (e.g. the Giffgaff UK eSIM) from purchase, as stated on the product page. Installing early usually does not start the plan; some QR codes must be used within 180 days.
Fair-use limit: Unlimited plans may be subject to a local operator fair-use policy: heavy use in a short period can be temporarily slowed or deprioritised (1080p streaming still possible), lifted the following day. The per-plan speed policy is stated on each product page.
Top-ups & rollover: No top-ups or extensions: data on an existing eSIM cannot be renewed; buy a new eSIM when you need more (ByteSIM FAQ: not supported due to the anonymous nature of their eSIM products).
Lost device / reinstalling: A QR code binds to the first phone that scans it and cannot be scanned by another; most profiles are not transferable or reinstallable after deletion, so contact support before changing or resetting a phone (depends on the plan). A lost QR code can be viewed again in the app.
Billing currency: Prices and checkout are in USD for every storefront country (the site's country selector lists USD $ throughout).
Support: WhatsApp · Email · Help center · 24/7
Payment: Apple Pay · PayPal

Facts verified on Oct 7, 2026 from ByteSim's own site

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#	Data	Duration	Daily cap	Price/GB	Price/day	Price
1	Compare Best unlimited Unlimited 500MB/day	1 days	500MB/day	—	$2.90/day	$2.90 $2.90 $2.76	Get eSIM
2	Compare Unlimited 500MB/day	3 days	500MB/day	—	$0.97/day	$2.90 $2.90 $2.76	Get eSIM
3	Compare Unlimited 1GB/day	1 days	1GB/day	—	$3.50/day	$3.50 $3.50 $3.33	Get eSIM
4	Compare Unlimited 500MB/day	5 days	500MB/day	—	$0.78/day	$3.90 $3.90 $3.71	Get eSIM
5	Compare Unlimited 1GB/day	3 days	1GB/day	—	$1.30/day	$3.90 $3.90 $3.71	Get eSIM
6	Compare Unlimited 2GB/day	1 days	2GB/day	—	$3.90/day	$3.90 $3.90 $3.71	Get eSIM
7	Compare 3GB	3 days	—	$1.30/GB	$1.30/day	$3.90 $3.90 $3.71 $1.30/GB	Get eSIM
8	Compare Unlimited No daily cap	1 days	No daily cap	—	$3.90/day	$3.90 $3.90 $3.71	Get eSIM
9	Compare 3GB	5 days	—	$1.40/GB	$0.84/day	$4.20 $4.20 $3.99 $1.40/GB	Get eSIM
10	Compare Best price 3GB	7 days	—	$1.50/GB	$0.64/day	$4.50 $4.50 $4.28 $1.50/GB	Get eSIM
11	Compare Unlimited 500MB/day	7 days	500MB/day	—	$0.70/day	$4.90 $4.90 $4.66	Get eSIM
12	Compare Unlimited 1GB/day	5 days	1GB/day	—	$0.98/day	$4.90 $4.90 $4.66	Get eSIM
13	Compare Unlimited 3GB/day	1 days	3GB/day	—	$4.90/day	$4.90 $4.90 $4.66	Get eSIM
14	Compare 3GB	10 days	—	$1.63/GB	$0.49/day	$4.90 $4.90 $4.66 $1.63/GB	Get eSIM
15	Compare 5GB	3 days	—	$0.98/GB	$1.63/day	$4.90 $4.90 $4.66 $0.98/GB	Get eSIM
16	Compare 3GB	15 days	—	$1.73/GB	$0.35/day	$5.20 $5.20 $4.94 $1.73/GB	Get eSIM
17	Compare 5GB	5 days	—	$1.04/GB	$1.04/day	$5.20 $5.20 $4.94 $1.04/GB	Get eSIM
18	Compare 5GB	7 days	—	$1.10/GB	$0.79/day	$5.50 $5.50 $5.23 $1.10/GB	Get eSIM
19	Compare Unlimited 500MB/day	10 days	500MB/day	—	$0.59/day	$5.90 $5.90 $5.61	Get eSIM
20	Compare Unlimited 2GB/day	3 days	2GB/day	—	$1.97/day	$5.90 $5.90 $5.61	Get eSIM
21	Compare Best price/day 3GB	30 days	—	$1.97/GB	$0.20/day	$5.90 $5.90 $5.61 $1.97/GB	Get eSIM
22	Compare 5GB	10 days	—	$1.18/GB	$0.59/day	$5.90 $5.90 $5.61 $1.18/GB	Get eSIM
23	Compare 5GB	15 days	—	$1.30/GB	$0.43/day	$6.50 $6.50 $6.18 $1.30/GB	Get eSIM
24	Compare Unlimited 1GB/day	7 days	1GB/day	—	$0.99/day	$6.90 $6.90 $6.56	Get eSIM
25	Compare Unlimited 3GB/day	3 days	3GB/day	—	$2.30/day	$6.90 $6.90 $6.56	Get eSIM
26	Compare 5GB	30 days	—	$1.38/GB	$0.23/day	$6.90 $6.90 $6.56 $1.38/GB	Get eSIM
27	Compare Unlimited 2GB/day	5 days	2GB/day	—	$1.58/day	$7.90 $7.90 $7.51	Get eSIM
28	Compare 10GB	3 days	—	$0.85/GB	$2.83/day	$8.50 $8.50 $8.08 $0.85/GB	Get eSIM
29	Compare Unlimited 500MB/day	15 days	500MB/day	—	$0.59/day	$8.90 $8.90 $8.46	Get eSIM
30	Compare 10GB	5 days	—	$0.89/GB	$1.78/day	$8.90 $8.90 $8.46 $0.89/GB	Get eSIM
31	Compare 10GB	7 days	—	$0.92/GB	$1.31/day	$9.20 $9.20 $8.74 $0.92/GB	Get eSIM
32	Compare 10GB	10 days	—	$0.95/GB	$0.95/day	$9.50 $9.50 $9.03 $0.95/GB	Get eSIM
33	Compare Unlimited 1GB/day	10 days	1GB/day	—	$0.99/day	$9.90 $9.90 $9.41	Get eSIM
34	Compare Unlimited 5GB/day	7 days	5GB/day	—	$1.41/day	$9.90 $9.90 $9.41	Get eSIM
35	Compare 10GB	15 days	—	$0.99/GB	$0.66/day	$9.90 $9.90 $9.41 $0.99/GB	Get eSIM
36	Compare Unlimited No daily cap	3 days	No daily cap	—	$3.30/day	$9.90 $9.90 $9.41	Get eSIM
37	Compare Unlimited No daily cap	3 days	No daily cap	—	$3.30/day	$9.90 $9.90 $9.41	Get eSIM
38	Compare Unlimited 5GB/day	20 days	5GB/day	—	$0.50/day	$9.90 $9.90 $9.41	Get eSIM
39	Compare Unlimited 500MB/day	20 days	500MB/day	—	$0.55/day	$10.90 $10.90 $10.36	Get eSIM
40	Compare Unlimited 2GB/day	7 days	2GB/day	—	$1.56/day	$10.90 $10.90 $10.36	Get eSIM
41	Compare Unlimited 3GB/day	5 days	3GB/day	—	$2.18/day	$10.90 $10.90 $10.36	Get eSIM
42	Compare 10GB	30 days	—	$1.09/GB	$0.36/day	$10.90 $10.90 $10.36 $1.09/GB	Get eSIM
43	Compare Unlimited No daily cap	5 days	No daily cap	—	$2.38/day	$11.90 $11.90 $11.31	Get eSIM
44	Compare Unlimited 1GB/day	15 days	1GB/day	—	$0.86/day	$12.90 $12.90 $12.26	Get eSIM
45	Compare Unlimited 5GB/day	15 days	5GB/day	—	$0.90/day	$13.50 $13.50 $12.83	Get eSIM
46	Compare Unlimited No daily cap	7 days	No daily cap	—	$1.99/day	$13.90 $13.90 $13.21	Get eSIM
47	Compare Unlimited 500MB/day	30 days	500MB/day	—	$0.50/day	$14.90 $14.90 $14.16	Get eSIM
48	Compare Unlimited 2GB/day	10 days	2GB/day	—	$1.49/day	$14.90 $14.90 $14.16	Get eSIM
49	Compare Unlimited 3GB/day	7 days	3GB/day	—	$2.13/day	$14.90 $14.90 $14.16	Get eSIM
50	Compare Unlimited No daily cap	5 days	No daily cap	—	$2.98/day	$14.90 $14.90 $14.16	Get eSIM
51	Compare Unlimited No daily cap	10 days	No daily cap	—	$1.49/day	$14.90 $14.90 $14.16	Get eSIM
52	Compare 20GB	3 days	—	$0.75/GB	$5.00/day	$15.00 $15.00 $14.25 $0.75/GB	Get eSIM
53	Compare 20GB	5 days	—	$0.80/GB	$3.18/day	$15.90 $15.90 $15.11 $0.80/GB	Get eSIM
54	Compare 20GB	7 days	—	$0.83/GB	$2.36/day	$16.50 $16.50 $15.68 $0.83/GB	Get eSIM
55	Compare Unlimited 1GB/day	20 days	1GB/day	—	$0.85/day	$16.90 $16.90 $16.06	Get eSIM
56	Compare 20GB	10 days	—	$0.85/GB	$1.69/day	$16.90 $16.90 $16.06 $0.85/GB	Get eSIM
57	Compare 20GB	15 days	—	$0.90/GB	$1.19/day	$17.90 $17.90 $17.01 $0.90/GB	Get eSIM
58	Compare Unlimited No daily cap	15 days	No daily cap	—	$1.19/day	$17.90 $17.90 $17.01	Get eSIM
59	Compare 20GB	30 days	—	$0.95/GB	$0.63/day	$18.90 $18.90 $17.96 $0.95/GB	Get eSIM
60	Compare Unlimited 3GB/day	10 days	3GB/day	—	$1.99/day	$19.90 $19.90 $18.90	Get eSIM
61	Compare Unlimited 5GB/day	30 days	5GB/day	—	$0.66/day	$19.90 $19.90 $18.90	Get eSIM
62	Compare 30GB	3 days	—	$0.66/GB	$6.63/day	$19.90 $19.90 $18.90 $0.66/GB	Get eSIM
63	Compare Unlimited No daily cap	7 days	No daily cap	—	$2.84/day	$19.90 $19.90 $18.90	Get eSIM
64	Compare Unlimited 2GB/day	15 days	2GB/day	—	$1.39/day	$20.90 $20.90 $19.85	Get eSIM
65	Compare 30GB	5 days	—	$0.70/GB	$4.18/day	$20.90 $20.90 $19.85 $0.70/GB	Get eSIM
66	Compare 30GB	7 days	—	$0.73/GB	$3.13/day	$21.90 $21.90 $20.81 $0.73/GB	Get eSIM
67	Compare 30GB	10 days	—	$0.76/GB	$2.29/day	$22.90 $22.90 $21.76 $0.76/GB	Get eSIM
68	Compare Unlimited 1GB/day	30 days	1GB/day	—	$0.80/day	$23.90 $23.90 $22.71	Get eSIM
69	Compare 30GB	15 days	—	$0.80/GB	$1.59/day	$23.90 $23.90 $22.71 $0.80/GB	Get eSIM
70	Compare 30GB	30 days	—	$0.86/GB	$0.86/day	$25.90 $25.90 $24.60 $0.86/GB	Get eSIM
71	Compare Unlimited No daily cap	20 days	No daily cap	—	$1.35/day	$26.90 $26.90 $25.56	Get eSIM
72	Compare Unlimited 2GB/day	20 days	2GB/day	—	$1.40/day	$27.90 $27.90 $26.51	Get eSIM
73	Compare Unlimited No daily cap	10 days	No daily cap	—	$2.80/day	$28.00 $28.00 $26.60	Get eSIM
74	Compare Unlimited 3GB/day	15 days	3GB/day	—	$1.93/day	$28.90 $28.90 $27.46	Get eSIM
75	Compare Best price/GB 50GB	3 days	—	$0.60/GB	$9.97/day	$29.90 $29.90 $28.40 $0.60/GB	Get eSIM
76	Compare Unlimited No daily cap	30 days	No daily cap	—	$1.00/day	$29.90 $29.90 $28.40	Get eSIM
77	Compare 50GB	5 days	—	$0.62/GB	$6.18/day	$30.90 $30.90 $29.35 $0.62/GB	Get eSIM
78	Compare 50GB	7 days	—	$0.64/GB	$4.56/day	$31.90 $31.90 $30.31 $0.64/GB	Get eSIM
79	Compare 50GB	10 days	—	$0.68/GB	$3.39/day	$33.90 $33.90 $32.21 $0.68/GB	Get eSIM
80	Compare 50GB	15 days	—	$0.70/GB	$2.33/day	$34.90 $34.90 $33.16 $0.70/GB	Get eSIM
81	Compare Unlimited 3GB/day	20 days	3GB/day	—	$1.90/day	$37.90 $37.90 $36.00	Get eSIM
82	Compare 50GB	30 days	—	$0.78/GB	$1.30/day	$38.90 $38.90 $36.96 $0.78/GB	Get eSIM
83	Compare Unlimited 2GB/day	30 days	2GB/day	—	$1.33/day	$39.90 $39.90 $37.91	Get eSIM
84	Compare Unlimited No daily cap	15 days	No daily cap	—	$2.79/day	$41.90 $41.90 $39.81	Get eSIM
85	Compare Unlimited No daily cap	20 days	No daily cap	—	$2.70/day	$53.90 $53.90 $51.21	Get eSIM
86	Compare Unlimited 3GB/day	30 days	3GB/day	—	$1.86/day	$55.90 $55.90 $53.11	Get eSIM
87	Compare Unlimited No daily cap	30 days	No daily cap	—	$2.33/day	$69.90 $69.90 $66.41	Get eSIM

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🇻🇳 ByteSim eSIM Plans for Vietnam

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ByteSim eSIM Plans for Vietnam